Abstract
This paper introduces a W-band dual-polarization reflector antenna which combines one dual-polarized transmit-receive SUM channel and two single-polarized DIFF receiving channels. The feed of the antenna consists of four OMTs (Orth Mode Transducer) to realize dual-polarization monopulse angle measurement. Four horns of the feed are combined into one radiation aperture by a coupled retracted structure to decrease side-lobes. The SUM beam gain of the proposed antenna is over 41 dBi and the aperture efficiency of 60% is achieved, cross-polarization level is better than –43 dB. The first sidelobe level is better than -30dB. The null-depth is better than -20dB.
Original language | English |
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Pages (from-to) | 905-908 |
Number of pages | 4 |
Journal | Applied Computational Electromagnetics Society Journal |
Volume | 34 |
Issue number | 6 |
Publication status | Published - 2019 |
Keywords
- Dual-polarization
- Monopulse
- Reflector antenna
- W-band