VHF suspended plate transmitter antenna design for DVB‐T and DAB‐T
Author(s) -
Ali Abdul,
Ciydem Mehmet,
Altintas Ayhan,
Koc Sencer
Publication year - 2018
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.31196
Subject(s) - beamwidth , wideband , dipole antenna , vivaldi antenna , radiation pattern , electrical engineering , monopole antenna , acoustics , bandwidth (computing) , ground plane , antenna measurement , engineering , antenna (radio) , electronic engineering , optics , physics , telecommunications
Abstract This paper presents the design of stacked suspended plate transmitter antenna for digital video and audio broadcasting. Contrary to conventional dipole structures, we have designed the antenna in VHF band (174–254 MHz) with two plates for wideband matching and design flexibility. Radiating primary plate has been excited by novel wideband modified inverted L‐type probe. Parasitic secondary plate, and vertical wall between primary plate, and ground plane have been used for further matching and beamwidth adjustment. A bandwidth of 42% and gain of 8.5 dBi is obtained at center frequency. Together with equivalent lumped element circuit model of designed antenna and experimental results for S 11 , gain, and radiation pattern are presented. To the best of authors knowledge this is the first stacked suspended plate antenna achieving a record bandwidth of 42% in VHF band.