Broadband stacked antenna based on E-shaped patch for digital terrestrial TV broadcasting transmission system

Abstract

This paper presents the design of broadband stacked microstrip antenna with E-shaped patch for digital terrestrial TV broadcasting transmission system (DTTB-TS) in UHF-band. By using the stacked structure, the E-shaped patch and the washer on the probe of the feed, the impedance bandwidth of the proposed antenna for |S11| ≤-23 dB is extended to 18.2 %. To validate the structure, an antenna operating from 544 MHz to 653 MHz was designed. The attractive feature of this design lies in the introduction of microstrip patch antenna for the DTTB-TS, which greatly reduces the cost and simplifies the structure of the digital terrestrial TV broadcasting transmission antenna (DTTB-TA), meanwhile handling high input power.