Title :
Efficiency measurement for multi-band and broadband antennas using the modified Wheeler cap method
Author :
Cho, Chihyun ; Choo, Hosung ; Park, Ikmo ; Kang, Jin-Seob
Author_Institution :
Sch. of Electron. & Electr. Eng., Hong Ik Univ., Seoul
Abstract :
In this paper, a modified Wheeler cap method is proposed using a high order circuit model to more accurately estimate the efficiency of antennas containing such complicated operations. To verify the proposed method, the efficiency of a microstrip antenna with triple resonances was measured. Additionally, the efficiency of an electromagnetic coupled monopole antenna, which has more complicated operating principles, was measured. Finally, the modified Wheeler cap method was compared with the conventional Wheeler cap method and the simulated results
Keywords :
broadband antennas; microstrip antennas; monopole antennas; multifrequency antennas; broadband antennas; electromagnetic coupled monopole antenna; high order circuit model; microstrip antenna; modified Wheeler cap method; multiband antennas; Antenna measurements; Broadband antennas; Electric resistance; Electrical resistance measurement; Electromagnetic coupling; Electromagnetic measurements; Loss measurement; Microstrip antennas; RLC circuits; Resonance;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1710556
