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- Title
Dual-band Circularly-Polarized Monopulse Antenna System with Single Layer Patches and Separated Feed Networks.
- Authors
Fartookzadeh, Mahdi; Mohseni Armaki, Seyed H.
- Abstract
This paper introduces a new method for the design and realization of two monopulse antennas with circular polarization and unique phase center for two different frequency bands. The design uses a compact sequential-rotation serially fed 2x2 patch array for each section of the monopulse antenna for X band at 8.2 GHz and a patch for S band at 2.25 GHz. The patches are placed on one layer, and the monopulse network and feeds are placed on different layers. The antennas use sequential- rotation serial feeds with four and three probes for X band and S band, respectively. Also, the packaging and coupling effects are considered and compensated for this design. Finally, the antenna with a compact multi-layer structure is fabricated, and the simulation results are validated. The bandwidth of X band monopulse antenna system is at least 12.7% in simulation and 10% in fabrication, and it is about 10.2% and 10.3% for S band in simulation and fabrication, respectively. While the phase centers of both frequency bands are approximately at one point, the antenna system can be employed as a feed for reflectors.
- Subjects
MONOPULSE radar; ANTENNAS (Electronics); CIRCULAR polarization; BANDWIDTH research; ELECTROMAGNETISM
- Publication
Progress in Electromagnetics Research C, 2014, Vol 55, p43
- ISSN
1937-8718
- Publication type
Article
- DOI
10.2528/pierc14100601