High Gain ：By rationally designing the structure and size of the waveguide antenna, electromagnetic waves can be concentratedly radiated in a specific direction, thereby obtaining a higher gain and effectively enhancing the transmission and reception capabilities of signals.
Low loss ：Waveguides are usually made of metal materials, with smooth inner walls and less transmission loss to electromagnetic waves. Especially in microwave and millimeter wave bands, the low loss characteristics of waveguide antennas give them obvious advantages. 3。
Broadband ：Some waveguide antenna structures, such as waveguide horn antennas, leakage antennas, etc., can maintain good performance in a wide frequency range, meeting the needs of multiple communications and radar systems for broadband. 2。
High direction ：Electromagnetic waves can be concentrated in specific directions to radiate or receive, reducing signal interference in other directions, and improving the system's anti-interference ability and signal transmission accuracy.
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