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Front-to-Back Ratio Enhanced Short Pyramidal Horn with an Integrated Linearly Tapered Slot Antenna
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- Authors
- Young-Hwan Lee, Junho Choi, Soon-Soo Oh, Koung-Joo Lee, Young-Sik Kim
- Issue Date
- 2012-12
- Citation
- Asia-Pacific Microwave Conference (APMC) 2012, pp.1076-1078
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- A new electrically short pyramidal horn antenna is proposed. The proposed structure combines a pyramidal horn and a linearly tapered slot antenna (LTSA) to improve a front-to-back ratio (FBR). The LTSA inside a pyramidal horn is fed by a waveguide-to-finline transition. As most of the E-fields are guided through the LTSA, the horn may act as a reflector. With an optimized horn size, the backward radiation is significantly reduced. The simulated results show a gain of 10 dBi and a FBR of 25 dB in the frequency range from 690 MHz to 960 MHz. The FBR of the proposed antenna is enhanced over that of the pyramidal horn without a LTSA by a factor of 8 dB in the whole operation band. The total size of the proposed antenna is 450 (W) mm × 400 (H) mm × 120 (L2) mm. © 2012 IEEE.
- KSP Keywords
- Frequency range, Tapered Slot Antenna(TSA), front-to-back ratio(FBR), pyramidal horn antenna