Title :
A study on loop antenna with uniform current distribution
Author :
Minemura, Takashi ; Amano, Takashi ; Morooka, Tasuku
Author_Institution :
Core Technol. Center, Toshiba Corp., Tokyo, Japan
Abstract :
A new antenna concept is proposed to improve and stabilize performance at the talk position of cellular telephones. Constant vertical average gain which is independent of its tilting angle and suppressed radiation toward an operator side can be realized by loop type antennas with uniform current distribution. The proposed square antenna of 0.54 λ circumference length with distributed capacitances is measured. Predictable results are obtained.
Keywords :
antenna radiation patterns; cellular radio; current distribution; loop antennas; mobile antennas; cellular telephones; constant vertical average gain; distributed capacitances; loop antenna; performance; square antenna; suppressed radiation; talk position; tilting angle; uniform current distribution; Antenna measurements; Antenna radiation patterns; Base stations; Capacitance; Capacitors; Conductors; Current distribution; Electrical resistance measurement; Impedance; Transmitting antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1332068
