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I have an existing PCB patch antenna array that under-performs: its gain is consistently low across the entire operating band. The goal of this project is a measurable performance upgrade—specifically a clear gain improvement—without increasing the overall board size or compromising manufacturability. You will start from my current Gerber files and 3D model, diagnose why the array is losing gain, and then adjust the element geometry, feed network, ground plane, or matching circuitry as needed. Full-wave EM simulation (CST, HFSS, or equivalent) is required to validate each design iteration; Smith-chart impedance plots, realised gain, efficiency, and 3-D radiation patterns must be included in the reports. I am open to adding parasitic patches, EBG structures, or other proven techniques as long as the final layout remains douple-layer FR-4 and can be fabricated by a standard PCB house. Deliverables • Annotated EM simulation project files showing the optimisation steps • Updated PCB layout (Gerber, drill, pick-and-place) ready for fabrication • Brief report comparing original vs. improved S11 and gain over the full band, with screenshots of radiation patterns Acceptance criteria: at least 3 dB gain increase across the specified frequency range while maintaining ≤ –10 dB return loss. If you have tackled similar low-gain issues in microstrip or patch arrays, your insight will be valuable. Let’s turn this board into the high-performance array it was meant to be.
Project ID: 40625650
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66 freelancers are bidding on average $156 USD for this job

Hi, I am an embedded systems engineer with over 16 years of experience taking RF-enabled consumer products from concept through production, including PCB design, antenna integration, bring-up, and firmware support. I can rebuild your existing array in a full-wave EM tool, correlate the baseline from the Gerbers and 3D model, then identify losses in the patch geometry, feed network, ground plane, matching, and FR-4 stack-up. I will iterate practical, manufacturable changes and document S11/Smith charts, realised gain, efficiency, and 3-D radiation patterns before preparing fabrication-ready Gerber, drill, and pick-and-place files. I will focus specifically on achieving the requested 3 dB improvement and ≤–10 dB return loss without enlarging the board. Please share the exact frequency range, FR-4 stack-up/material data, and any existing measured results. I invite you to discuss the array details and expected test setup.
$210 USD in 14 days
7.6
7.6

Hi, I can help optimize your PCB patch antenna array for higher gain while maintaining the existing board size and a standard double-layer FR-4 stack-up. I’ll begin by analyzing your current Gerber files and 3D model to identify the causes of the low realized gain, including element spacing, feed network losses, impedance matching, ground plane effects, and radiation efficiency. The design will be validated through full-wave EM simulations (CST/HFSS), with iterative optimization of the patch geometry, feed network, and, where beneficial, parasitic elements or EBG structures. You’ll receive updated fabrication-ready Gerber files, drill and pick-and-place data, the EM simulation project files, and a comparison report including S11, Smith chart, realized gain, efficiency, and 3D radiation patterns. My objective is to achieve the requested ≥3 dB gain improvement while maintaining ≤ -10 dB return loss across the operating band.
$500 USD in 5 days
6.9
6.9

With over 8 years under my belt as an electrical/electronics engineer, I'm confident I have the necessary skills to maximize your PCB patch antenna’s performance. My expertise includes designing high-quality circuit boards, utilizing tools such as Eagle and Altium. In addition, my proficiency with full-wave EM simulation using tools like CST and HFSS makes me the perfect candidate for this task. My track record in designing microstrip and patch arrays sets me apart from the competition. I’ve successfully increased gain in similar underperforming antennas by optimizing element geometry, feed network, ground planes and other essential adjustments. My enduring commitment to delivering a product that aligns with your specifications while ensuring manufacturability is not compromised further bolsters my case as the right fit for your project. Even beyond delivering an enhanced antenna array, I aim to provide you with comprehensive project documentation that clearly demonstrates the improvement achieved and enables you to validate it independently. Let's collaborate on this project, turning your low-gain antenna into a high-performance array.
$140 USD in 7 days
6.9
6.9

Being an adept electrical engineer and PCB layout specialist, I am well-equipped to revamp your under-performing antenna array. My experience in designing and producing high-performance PCBs, especially for RF purposes, will be an asset in isolating and solving the root cause of the low gain problem. I am familiar with working on double-layer FR-4 with standard gerber files and can guarantee a design that remains compact yet efficient. Deep-rooted in my capabilities is my proficiency with RF circuit design and analysis using tools comparable to CST, HFSS, critical to validate each design iteration. I have a knack for resolving impedance issues as well as improving overall efficiency, which would undoubtedly enhance your board's performance. Finally, not only do I promise a significant 3dB+ gain increase with minimal return loss across frequencies; I also offer comprehensive reports with technical data like Smith-chart impedance plots, realized gain, efficiency & 3D radiation patterns, to ensure transparency. With me, you're not just getting an expert - you're finding a reliable partner committed to delivering top-notch solutions without compromise. Let's collaborate to give your antenna array the high-performance advantages it deserves!
$140 USD in 2 days
6.9
6.9

Hi there, I read your offer carefully and understand that you need to improve the gain of an existing PCB patch antenna array without increasing board size, while keeping the final design manufacturable on double-layer FR-4. I can review the current Gerbers and 3D model, diagnose the gain loss, optimize the patch geometry, feed network, ground plane, matching circuit, and possible parasitic/EBG structures, then validate the changes with full-wave EM simulation including S11, Smith chart, realized gain, efficiency, and 3D radiation patterns. My experience with RF PCB design, antenna layout, impedance matching, simulation-driven optimization, PCB manufacturability, and high-frequency layout fits this project well. Just send me a message and we can review the current files, operating band, and first simulation milestone. Best regards, Samuel Tshibangu
$250 USD in 1 day
6.4
6.4

Through my extensive experience in electrical engineering and product design, I’ve developed an innate understanding of problem-solving in the field. Specifically, I have ample skills and experience with PCB layout, Gerber files, 3D modeling, and electromagnetic simulation (using HFSS) that are directly relevant to your project. I've tackled several issues with low-gain patch arrays over the years and managed to optimize their performance without compromising on crucial parameters such as board size and manufacturability.
$66 USD in 1 day
6.0
6.0

Hi, Your project aligns well with my experience in RF and microwave PCB design, antenna optimization, and full-wave EM simulation. I have worked on microstrip and patch antennas, impedance matching networks, RF feed optimization, and PCB layouts for production, using tools such as CST Studio Suite, Ansys HFSS, and Altium/KiCad. For your existing PCB patch antenna array, I will begin by analyzing the current Gerbers and identifying the factors limiting realized gain, including element geometry, feed distribution, ground plane effects, mutual coupling, and impedance matching. I will then optimize the design while maintaining the existing board dimensions and a double-layer FR-4 stack-up. Where appropriate, I can evaluate techniques such as parasitic elements, feed-network refinement, or EBG structures to improve radiation efficiency. Deliverables will include the updated PCB layout, Gerbers, drill and pick-and-place files, EM simulation project files, and a comparison report covering S11, Smith charts, realized gain, efficiency, and 3D radiation patterns. A 3 dB gain improvement is an ambitious but worthwhile target. I will optimize the design through multiple simulation iterations and validate every modification before manufacturing. I would be happy to discuss your operating frequency, current antenna performance, and simulation results to define the best optimization strategy. Regards,
$140 USD in 1 day
5.8
5.8

HI, KINDLY READ THROUGH MY PROPOSAL I will diagnose and upgrade your existing PCB patch antenna array to deliver at least 3 dB higher gain across the full band, while keeping the same board size and double-layer FR-4 construction. MY APPROACH ✅ Full-wave EM simulation (CST/HFSS) of your current design to identify gain losses ✅ Optimize element geometry, feed network, ground plane and matching ✅ Validate every change with Smith charts, realised gain, efficiency and 3-D patterns DELIVERABLES • Annotated EM simulation files • Updated Gerber, drill & pick-and-place files • Comparison report (original vs improved S11 & gain) QUESTIONS 1 Please share Gerbers, 3D model and operating frequency band. 2 Current measured/simulated gain and return loss? Ready to start immediately.
$150 USD in 3 days
6.4
6.4

As an expert in electrical engineering and product design, I am excited about the challenge your project presents. My extensive experience with antenna design and precise skill in PCB layout make me a perfect fit for increasing the gain performance of your patch antenna array. I specialize in resolving low-gain issues, particularly with microstrip or patch arrays. I am well-versed with tools like CST, HFSS, or any equivalents required for EM simulation and have performed numerous projects similar to yours with investigative approaches. Using these simulations, I will analyze your existing Gerber files and 3D model to identify where the array is under-performing, and I will update them accordingly. Throughout this process, I'll ensure that our modifications remain within double-layer FR-4 constraints so it can be fabricated easily by standard PCB houses. In addition to modifying the design, my deliverables will include detailed annotated EM simulation project files as well as a comparative report highlighting gain improvement, Smith-chart impedance plots and 3-D radiation patterns; everything to keep you informed of the progress being made. With my expertise and passion for increasing antenna performance while maintaining manufacturability, let’s transform your patch antenna array into the high-performance solution you envisioned.
$140 USD in 3 days
5.8
5.8

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Electrical and Electronics engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas: Antenna Design (CST, HFSS) Embedded C Programming. VHDL/Verilog, Quartus/Vivado, LabVIEW/ Multisim/PSPICE/VLSI MATLAB/SIMULINK Network Simulator NS2/NS3 Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32. IDEs like Keil MDK V5, ATmel studio and MPLab XC8. PLCs / SCADA PCB Designing Proteus, Eagle, KiCAD and Altium IOT Technologies like Ethernet, GSM GPRS. HTTP Restful APIs connection for IOT Communications. Also, we have good command over report writing, I can show you many samples of our previous reports. Kindly consider us for your project and text me so that we can further discuss specifically about your project's main goals and requirements.
$140 USD in 7 days
6.2
6.2

Hey, You are looking for Boost PCB Patch Antenna Gain. "Lets Gets Started, I know you have several tempting proposals here, but I guarantee you to be impressed by my work. I have various skills in design, Illustration, Photoshop, Graphic Design, Logo Design and Illustrator. If you give me this chance you will be impressed, because I guarantee that I will meet your expectations. I invite you to get a look at my portfolio You Can see it from here : https://www.freelancer.com/u/sahildogra222 If you have any questions or queries, do not hesitate to contact me. I hope to start working with you. With regards! SAHIL
$30 USD in 1 day
5.4
5.4

As an experienced PCB designer and a proficient in electronics, I understand the myriad of complexities that can reduce antenna performance. Over the years, I have mastered various techniques to maximize antenna gains while adhering scrupulously to the original design parameters. Notably, I'm well-conversant with full-wave EM simulation (using tools such as CST and HFSS) and can proficiently utilize them to validate each design iteration. Let us join forces to transform your underperforming PCB patch antenna array into a high-performance gem that it was meant to be. With my expertise bolstered by your project's detail-oriented specifications, expect nothing less than remarkable results. Let us work together towards efficiency, better gain, and stronger signal integrity.
$51 USD in 1 day
5.3
5.3

I have an existing PCB patch antenna array that under-performs: its gain is consistently low across the entire operating band. The goal of this project is a measurable performance upgrade—specifically a clear gain improvement—without increasing the overall board size or compromising manufacturability. You will start from my current Gerber files and 3D model, diagnose why the array is losing gain, and then adjust the element geometry, feed network, ground plane, or matching circuitry as needed. Full-wave EM simulation (CST, HFSS, or equivalent) is required to validate each design iteration; Smith-chart impedance plots, realised gain, efficiency, and 3-D radiation patterns must be included in the reports. I am open to adding parasitic patches, EBG structures, or other proven techniques as long as the final layout remains douple-layer FR-4 and can be fabricated by a standard PCB house. Deliverables • Annotated EM simulation project files showing the optimisation steps • Updated PCB layout (Gerber, drill, pick-and-place) ready for fabrication • Brief report comparing original vs. improved S11 and gain over the full band, with screenshots of radiation patterns Acceptance criteria: at least 3 dB gain increase across the specified frequency range while maintaining ≤ –10 dB return loss. If you have tackled similar low-gain issues in microstrip or patch arrays, your insight will be valuable. Let’s turn this board into the high-performance array it was meant to be.
$100 USD in 3 days
5.1
5.1

Hi There! As you can see in my portfolio on my profile, I have extensive experience designing PCBs and mass production equipment, just like you need. I can handle your project. I apologize for the simple proposal; I know you're probably tired of reading AI-generated proposals, and I'd rather not waste time on that. If you're interested in working with me, send me a message and we can work out the details! Best Regards!
$150 USD in 10 days
4.7
4.7

I have extensive experience in tackling similar low-gain issues in microstrip and patch arrays, making me the perfect fit for your high-performance antenna project. As a Senior Electronics Engineer with an RF engineering focus, I've been working in this field for over 8 years, specializing in circuit design and PCB layout. I am particularly skilled when it comes to antenna optimization using full-wave EM simulation software like CST and HFSS, just as you require. My track record proves my abilities to deliver robust hardware solutions, making me well-equipped to handle your project from start to finish efficiently and effectively. I'll start with a careful diagnosis of why your PCB patch antenna array underperforms, leveraging on your current Gerber files and 3D model. Throughout the process, I'll rigorously use EM simulations to validate each design iteration and supplement you with detailed reports containing Smith-chart impedance plots, realized gain, efficiency, and 3-D radiation patterns - ensuring maximum transparency and traceability for our shared understanding of the project. Additionally, my skills aren't restricted to circuit design and product development; I bring strong troubleshooting, system integration as well as project management skills to the table. I understand that delivering premium results within tight deadlines is crucial for success. By utilizing my proficiency in circuit design combined with my appetite for innovative solutions, I assure you an impressive measurable performance upgrade that meets the technical requirements but doesn't compromise manufacturability or increase the board size – all within the specified budget and timeframe. Let's collaborate on turning this board into the high-performance array it was meant to be!
$140 USD in 5 days
4.4
4.4

Dear Client, Most bids here will say, I can optimize a PCB antenna. But improving an existing patch antenna array requires much more than adjusting PCB dimensions. The real challenge is identifying the causes of low gain, including patch geometry, feed network losses, impedance mismatch, ground plane effects, and radiation efficiency. With 30 years of electronics design experience, we focus on delivering measurable RF performance improvements with a design that remains manufacturable and production-ready. ✅ Where we add value: 1. Full-wave EM analysis with S11, Smith chart, gain, efficiency, and radiation pattern validation. 2. Optimization of patch elements, feeding structure, matching, and ground plane for higher gain. 3. Updated fabrication package including Gerbers, drill files, and complete documentation. ✅ Suggestion: First, analyze the existing Gerber files and antenna structure through EM simulation to identify the actual performance limitations. This avoids trial-and-error modifications and ensures the final design achieves the required gain improvement while maintaining the same board size and FR-4 manufacturing process. ✅ Questions: 1. What is the operating frequency range and current measured gain of the antenna array? 2. Do you have existing CST/HFSS simulation files, or should we rebuild the antenna model from the Gerber files? OOPS, Character Limit! Please message me in chat; I can cover more technical aspects of your project
$180 USD in 4 days
6.5
6.5

Hi, I can help improve the gain of your existing PCB patch antenna array by reviewing the current Gerbers and 3D model, diagnosing the loss causes, and optimizing the antenna structure through EM simulation. The best solution is to first recreate or import the existing design into CST/HFSS-style simulation, validate the current S11, efficiency, gain, feed network, and radiation pattern, then iterate on element geometry, matching, ground plane, parasitic structures, or feed routing while keeping the same board size and 2-layer FR-4 manufacturability. I’m comfortable with patch antenna arrays, RF PCB layout, impedance matching, Smith charts, CST/HFSS-style analysis, gain/efficiency optimization, radiation pattern review, and fabrication-ready Gerber updates. Deliverables include: * Original design diagnosis * EM simulation project files * S11 and gain comparison * Smith chart plots * Efficiency and radiation patterns * Updated antenna layout * Gerber and drill files * Fabrication-ready package * Optimization report I’ll focus on achieving measurable gain improvement while maintaining return loss, board size, and standard PCB manufacturability. Best regards Ankit
$50 USD in 1 day
3.9
3.9

Hello, Your project closely matches my academic and industrial background. I hold an M.Sc. in Telecommunication Systems and worked for about five years at the Millimeter-Wave Laboratory of the University of Tehran, where I participated in RF and antenna development projects, including microstrip patch arrays, RF PCB design, impedance matching, and HFSS/ADS simulations for 24, 77 and 79 GHz radar systems. For this project, I will first analyze the existing Gerber files and identify the main factors limiting the antenna gain. Based on the results, I will optimize the antenna geometry, feed network and matching while keeping the PCB size and manufacturability unchanged whenever possible. The design will be validated using full-wave EM simulation (HFSS), including S11, Smith Chart, realized gain, efficiency and radiation patterns. I will also provide the updated design files and a concise comparison report. The achievable gain improvement ultimately depends on the physical limitations of the existing design and project constraints. My objective is to achieve the maximum practical performance improvement within those constraints. I look forward to discussing your antenna design. Best regards,
$250 USD in 14 days
3.8
3.8

As an experienced electrical engineer and electronics specialist, I am confident that I can bring my skills to bear on your PCB patch antenna array challenge. While I may be somewhat new to this freelance marketplace, I've been working actively in this field since October 2020 and am well-versed in the necessary software such as CST, Ki Cad, Gerber file, Altium, Or CAD for full-wave EM simulations and PCB design. I assure you that this lack of prior work on this platform doesn't reflect a lack of experience or capability.
$35 USD in 1 day
4.0
4.0

Hi, I hope you’re doing well! I’m a Signal & Power Integrity Engineer with hands-on experience in RF PCB simulations and antenna design using Ansys HFSS and SIwave. I’d be happy to help you troubleshoot the low gain of your existing patch antenna array and optimize the design for better performance. I can analyze your current Gerbers and 3D model, identify the main causes of gain loss, and optimize the antenna geometry, feed network, ground plane, or matching as needed—all while keeping the existing board size and a manufacturable 2-layer FR-4 design. I’ll provide full-wave EM simulation results, including S11/return loss, Smith chart, realized gain, efficiency, and 3D radiation patterns, with a clear comparison between the original and optimized designs. My focus will be on achieving your target of at least 3 dB gain improvement while maintaining S11 ≤ –10 dB across the required frequency range. Feel free to message me with your existing Gerber files and 3D model, and we can discuss the best approach for optimizing the antenna. Best regards, Tanzeel Ehsan Signal & Power Integrity Engineer
$140 USD in 10 days
2.8
2.8

Manama, Bahrain
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