Omnidirectional VHF/UHF wide band dipole based design

@Mahihassi

As an accomplished Electrical Engineer with a profound LEAP_To1 in Antenna Design and CAD/CAM, I am confident in my ability to deliver on your project objectives, from creating a precise cutting list for multiple frequencies to ensuring a minimal SWR ratio. Throughout my career, I've consistently delivered solutions that exceed expectations by combining deep technical expertise with a focused approach. My extensive experience has allowed me to master the art of designing repeatable antennas that achieve superior performance measures. I am well-versed in using RG213 and understand how to maximize efficiency while adhering to a maximum 150w rating – but I always aim higher. Using brass dipoles internally, as you've specified, I will ensure each dipole length is exact for accurate radiation patterns and optimal performance. Should you choose me, your project stands to benefit from a rare blend of skills. Not only can I provide you with detailed manufacturing drawings for replicable production processes, but my deep expertise in embedded systems also equips me to add value by incorporating IoT connectivity into your future designs.

@Ryan15222

Hi, Thank you for the detailed project description. I am very interested in assisting with the development and optimization of your fiberglass enclosed end-fed antenna designs. My engineering background includes mechanical design, CAD development, manufacturing documentation, prototyping support, and simulation-driven product development. For this project, I can work on both the mechanical and RF implementation aspects required for a repeatable production-ready design. My proposed approach would be: • Review the existing antenna photographs, dimensions, and part drawings. • Analyze the current brass tube dipole and RG174 matching arrangement. • Develop an optimized design for one selected frequency band first as a proof-of-concept. • Produce a complete cutting list including all brass tube lengths and internal coaxial interconnections. • Generate manufacturing drawings and assembly documentation suitable for repeatable production. • Estimate antenna performance including impedance characteristics, expected SWR bandwidth, gain, and radiation pattern. • Recommend any design improvements that simplify manufacturing while maintaining or improving RF performance. For the initial prototype band, I would provide: - RF design calculations - Optimized element dimensions - Matching network details (if required) - Manufacturing drawings - Assembly instructions - Predicted radiation pattern - Predicted SWR and bandwidth performance Kind regards,

@mouniridmed

Hello I can create detailed CAD models, cutting lists, and manufacturing drawings for your antenna designs. I am an experienced CAD/CAM designer specializing in CATIA, SolidWorks, and AutoCAD, with over 10 years of professional freelance and teaching experience. I excel at transforming 2D plans into precise, detailed 3D models, creating accurate assemblies, parts, and visualizations ready for manufacturing or prototyping. With my expertise in Part Design, Generative Shape Design (GSD), Drafting, and Assembly Design, I deliver high-quality, production-ready models in STL, STEP, OBJ, or FBX formats. I am detail-oriented, efficient, and committed to exceeding client expectations. Best regards, Mounir

@mirsaeed24

Hello, Your project is very interesting because it combines product development, manufacturing, and performance optimization rather than simple drafting. I am a Mechanical Engineer with over 15 years of experience in product design, fabrication documentation, prototype development, and manufacturing support. I primarily work with Autodesk Inventor and AutoCAD, creating detailed 3D models, production drawings, BOMs, and fabrication packages for repeatable manufacturing. While my primary expertise is mechanical engineering rather than RF design, I am comfortable supporting the development process from a mechanical and manufacturing perspective. Starting with a single prototype design is a sensible approach. Once the concept is validated, I can help standardize the documentation and production process for the additional frequency ranges and future antenna products. I would be happy to review your photos and existing drawings to better understand the current design and discuss how I can contribute to the project. Kind regards,

@andrasr69

Hi there, I noticed that you need precise editing of an AutoCAD DWG where only Chinese text labels are translated into accurate English while preserving all geometry, layers, and dimensions exactly as-is. I’ve completed fully coordinated CAD annotation and multilingual drawing revision projects before with similar constraints. As a skilled Architectural CAD Specialist with over 7 years of experience, I specialize in providing precise, high-quality DWG editing using advanced tools like AutoCAD 2021/2024 and DraftSight. I also provide detailed text replacement, annotation alignment, font correction, and PDF review exports while ensuring full layer integrity and zero geometry modification. This is my portfolio link: https://www.freelancer.com/u/andrasr69 I am looking forward to work with you. Best regard.

@aRtEmIx404

Hello Sir, We have extensive experience in antenna design. We have previous experience designing Yagui and dipole antennas. Do no hesitate to write us. We are looking forward to having a long partnership with your team. Carlos.

@hakan1022

Hi, there! In a recent project, I designed a multi-band antenna that achieved exceptional performance, balancing efficiency and manufacturability to meet specific operational requirements. I implemented advanced simulation techniques using electromagnetic modeling software, which allowed me to optimize the antenna's geometry for minimal signal loss across diverse frequency ranges. One challenge I faced was ensuring the structural integrity while maintaining a compact design, which I overcame by selecting lightweight yet durable materials and refining the design iteratively based on simulation feedback. I offer to provide comprehensive manufacturing documentation, including detailed assembly instructions and a precise cutting list tailored to your frequency specifications. My unique approach emphasizes iterative design validation through simulation, similar to a project where I enhanced bandwidth performance while maintaining compliance with strict regulatory standards. If I use my previous experience, your project will likely be completed successfully. Hope to discuss this in detail. Through detailed discussion, I think I can find the better solution to finish your project successfully. Thank you.

@snydep

Electrical Engineer delivering accurate designs, reliable solutions, clear communication, and on-time results.