Implementation of the Broadcast Antenna with High Front-to-Back Ratio to Facilitate the Reuse of TV Channels

Sangwon PARK
Youchan JEON
Myeongyu KIM
Sanghoon SONG
Jinwoo PARK

IEICE TRANSACTIONS on Communications   Vol.E95-B    No.12    pp.3886-3889
Publication Date: 2012/12/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.3886
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Antennas and Propagation
broadcast antenna,  front-to-back ratio,  frequency reuse,  

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In this letter, we present a method for improving the front-to-back ratio (FBR) of a broadcast antenna. The digitalization of terrestrial TV demands more efficient channel usage due to the reduction in TV bands after the switch-over. Thus, we designed an antenna with an FBR improved over -45 dB as compared to the -20 to -25 dB FBR range of existing antennas. We show experimentally that this antenna satisfies the required performance.