A broadband horn antenna is a directional antenna with wideband characteristics. It consists of a gradually expanding waveguide (horn-shaped structure). The gradual change in the physical structure achieves impedance matching, maintaining stable radiation characteristics over a wide frequency range (e.g., multiple octaves). It has advantages such as high gain, narrow beam, and good directivity. Main applications: EMC testing (radiated emission/immunity testing), radar system calibration (gain reference), millimeter wave communications (satellite/5G high-frequency verification), and electronic countermeasures (broadband signal detection).
The log-periodic antenna is a frequency-invariant antenna consisting of a series of gradually decreasing oscillator elements arranged in a logarithmic periodic pattern. It achieves broadband operation through geometric self-similarity. Its radiation pattern remains stable within the frequency band, with moderate gain and end-fire characteristics. Its primary applications include: EMC testing (30MHz-3GHz radiated emission scanning), signal monitoring (electronic reconnaissance and spectrum analysis), television reception (UHF/VHF full-band coverage), and communication base stations (multi-band compatible deployment).
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Post time: Aug-15-2025
