I didn't think it was possible to create a directional CJU antenna for the U-band directly on a PCB.This is not an advertisement.）
Tolerance of 10W, gain of 6.2 dBi, front-to-back ratio of 29.8 dB
The in-band ripple within the 410-450 MHz range must be less than1.5
Antennas, besides their parameters, are also important because of...Aesthetic！Awesome! This antenna not only has impressive specifications, but also looks very professional in appearance, making it suitable for use at home.cosplay, no restrictions on direction(?) The PCB's surface also has a very geeky aesthetic, with the fiberglass board.Easy to carry，Durable and long-lasting. It was indeedMountain Summit Communication，Direct frequency repeater，Directional grabbing unitEssential items😍😍😍
Antenna performance testing shows significant improvements compared to the original antenna, with much better directionality. It's worth trying out the "black box" reception method.
Thank you, Teacher [菌老师's name], for developing this!
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