Title :
Rectangular meander line loop antenna for mic
Author :
Ju, Dea-Keun ; Oh, Tae-Hoon ; Woo, Jong-Myung
Author_Institution :
Chungnam Nat. Univ., Daejeon
Abstract :
In this paper, miniaturization of a wireless microphone antenna for a broadcast is aimed at 220MHz(1lambda=1363mm). First of all for miniaturization, a single rectangular loop antenna using meander lines is designed. To extend a bandwidth, a smaller rectangular antenna using meander lines is inserted into an inside of a rectangular antenna using meander lines and each of them has a feeding. Then, it has double resonance and a bandwidth for common microphone is produced -10dB bandwidth of 10MHz. A beam pattern is omni-directional in z-x plane(vertical pol.) and the maximum gain is -16dBd. It is simple structure and easy for mass production by printing technology. Therefore, a designed 2-layered rectangular loop antenna using meander lines is verified to be proper for a wireless microphone antenna.
Keywords :
loop antennas; microphones; broadcast; meander lines; omni-directional beam pattern; printing technology; rectangular meander line loop antenna; single rectangular loop antenna; wireless microphone antenna; Antenna feeds; Bandwidth; Cable TV; Coplanar waveguides; Educational institutions; Helical antennas; Microphones; Microwave integrated circuits; Resonance; TV broadcasting;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4396033
