Title :
Characteristics of wideband ring loop antenna for digital terrestrial broadcasting
Author :
Kawakami, H. ; Haga, Tatsuya ; Kon, S.
Author_Institution :
Antenna Giken Corp., Japan
Abstract :
In the transmitting and receiving antenna for the UHF band broadcasting, the requirements of the antenna are wideband linear polarization characteristics. It is possible to make a wideband antenna using the loop antenna, arranged vertically, with a circumference length about one wavelength. Miniaturization becomes possible in a simple shape by the realization of a wideband and high-gain linearly polarized ring loop antenna (RLA). The RLA is presented as a receiving antenna for the 470-770 MHz UHF band, but it can also be implemented as the transmitting and receiving antenna in the repeater station for digital terrestrial broadcasting. Because of its simple shape, the antenna element can be integrated with its feeder circuit, and light weight miniaturization becomes possible. It is possible to realize wide-band high-gain linear polarization to cover all UHF bands.
Keywords :
UHF antennas; antenna feeds; antenna radiation patterns; broadband antennas; broadcasting; electromagnetic wave polarisation; loop antennas; receiving antennas; transmitting antennas; 470 to 770 MHz; UHF band broadcasting; digital terrestrial broadcasting; feeder circuit; linear polarization; radiation patterns; receiving antenna; repeater station; transmitting antenna; wideband ring loop antenna; Antenna radiation patterns; Broadband antennas; Feeds; Frequency; Impedance; Narrowband; Polarization; Receiving antennas; UHF antennas; Voltage;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552068
