Dual Polarized Parabolic Dish Antenna, 6400-7200MHz

Background

A client from Russia required a specialized dual polarized parabolic dish antenna designed to operate within the 6400-7200MHz frequency range, with a gain exceeding 32dBi. The client also specified stringent requirements for the antenna's beamwidth, demanding both horizontal and vertical beamwidths to be less than 3 degrees. This project was crucial for the client's high-frequency communication needs, particularly in the context of advanced telecommunications infrastructure.

Challenges

The primary challenge was to design a high-gain parabolic dish antenna with extremely narrow beamwidths, which is typically more difficult to achieve at higher frequency bands. The design also had to accommodate dual polarization, adding complexity to the antenna's feed system.

RF element's Solution

Our engineering team embarked on a meticulous design process to meet these challenges:

1. Parabolic Reflector Selection: To achieve the required high gain, we selected a 90cm diameter parabolic reflector. The larger diameter allows for greater concentration of the radiated power, thereby increasing the antenna's gain.

2. Dual Polarized Feed Design: Our engineers designed a custom dual polarized feed capable of operating across the 6400-7200MHz frequency range. This feed was meticulously engineered to support both horizontal and vertical polarizations simultaneously.

3. Performance Simulation and Testing: After the initial design phase, we conducted multiple performance simulations to optimize the feed's performance. The feed was then installed on the 90cm parabolic reflector and tested in a professional microwave anechoic chamber to measure the antenna gain and beamwidths.

4. Fine-Tuning and Optimization: Through several iterations of tuning the dual polarized feed, we were able to fine-tune the antenna's performance to meet the client's stringent requirements.

Final Product

The final 6400-7200MHz dual polarized parabolic dish antenna exceeded the client's expectations, with a gain of over 33dBi and both horizontal and vertical beamwidths less than or equal to 3 degrees.

Please find the visual representation of our 6400-7200MHz dual polarized parabolic dish antenna. Note that due to client confidentiality, the image provided is of an initial version, intended for case analysis and studies.