Title :
A compact duplexer for IMT-2000 handsets using microstrip slow-wave open-loop resonators with high-impedance meander lines
Author :
OH, Soon-Soo ; Kim, Young-Sik
Author_Institution :
Dept. of Radio Sci. & Eng., Korea Univ., South Korea
Abstract :
A compact duplexer for an IMT-2000 handset application is presented. To reduce its size, a microstrip slow-wave open-loop resonator having high-impedance meander lines has been utilized. The proposed resonator has yielded an area reduction of 30% as compared to J. S. Hong and M. J. Lancaster (see IEEE Trans. Microwave Theory Tech., vol.45, p.2358-65, Dec. 1997). The duplexer is analyzed using the FDTD method and EM simulator IE3D. The implemented duplexer has shown a good performance and been well agreed with both analyses
Keywords :
band-pass filters; electric impedance; finite difference time-domain analysis; microstrip filters; microstrip resonators; mobile radio; multiplexing equipment; resonator filters; slow wave structures; telephone sets; 1.92 to 1.98 GHz; 2.11 to 2.17 GHz; FDTD; IE3D EM simulator; IMT-2000 handset application; band-pass filters; compact duplexer; high-impedance meander lines; microstrip slow-wave open-loop resonator; mobile handsets; Analytical models; Band pass filters; Capacitance; Feeds; Finite difference methods; Impedance; Microstrip resonators; Resonant frequency; Resonator filters; Telephone sets;
Conference_Titel :
Radio and Wireless Conference, 2001. RAWCON 2001. IEEE
Conference_Location :
Waltham, MA
Print_ISBN :
0-7803-7189-5
DOI :
10.1109/RAWCON.2001.947593
