Development of Microstrip Patch as HDTVAntenna for Terrestrial Indoor TV Reception

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering

article

Michael Olusope Alade¹  Olusegun Olabisi² 

[1] Department of Pure and Applied Physics, Ladoke Akintola University of Technology P.M.B 4000;Department of Science Laboratory Technology, Ladoke Akintola University of Technology P.M.B 4000

关键词: High Definition Television;    Indoor;    UHF Antenna;    High gain;   

来源: Research & Reviews

【 摘 要 】

This paper presents design, construction and analysis 4 by 2 corporate fed circular patches as High Definition Television (HDTV) antenna configuration for Ultra High Frequency (UHF) indoor reception. The single element was designed based on transmission line method. The single element radiation pattern is omnidirectional with high beamwidth of about 6dB and low gain of about2dBi which are poor for UHF television reception. As a result, single element patch was optimized to achieve 8elements which was arranged in 4 by 2 corporate fed circular patches as HDTV antenna configuration. By calculation, the 4 by 2 corporate fed circular patches antenna produced directional radiation pattern of low beamwidth of about 3dB and high gain of about 9dBi. The antenna was then fabricated by depositing resin of relative permittivity of 4.5 and thickness of 0.2cm using wet etching technique on un-galvanized aluminium of radius 2cm. The antenna‟s gains in passive and active modes were measured by Gain – Comparison Technique (GCT) with the aid of GSP 810 Spectrum Analyzer. The results obtained show that the peak gain at various frequencies in passive and active modes were 9, 8.83, 9, 8.99, 8.97dBi, at 487.6, 497.9, 531.4, 549.7, 566.9MHz, and 9.62, 11.23, 9.20, 8.99,8.97,9.09dBi, at 480.3, 499.1, 531.6, 549.7, 566.9,588.6MHz respectively.

【 授权许可】

Unknown