Title :
A study on broadband multi-hole directional coupler
Author :
Kim, Dae-Ho ; Baik, Chan-Wook ; Jeon, Seok-gi ; Park, Gun-Sik
Author_Institution :
Sch. of Phys., Seoul Nat. Univ., South Korea
Abstract :
The conventional theories of waveguide directional couplers, including Bethe´s theory, correction theory, and multi-hole array theory, can be a good start for designing very tight multi-hole couplers with square coupling apertures. Comparing with the conventional theory and HFSS, a modified Cohn´s empirical factor of thickness attenuation was obtained. A 0 dB-waveguide multi-hole coupler (X-band) is fabricated, and the calculated coupling and directivity are compared with HFSS simulation and measured values, showing a good agreement.
Keywords :
circuit CAD; circuit simulation; directional couplers; waveguide theory; Bethe theory; Cohn empirical thickness attenuation factor; HFSS simulation; X-band multi-hole coupler directivity/coupling; broadband multi-hole directional waveguide coupler study; high frequency structure simulator; multi-hole array theory; square coupling apertures; waveguide correction theory; Apertures; Artificial intelligence; Directional couplers; Frequency dependence; Polarization; Polynomials; Propulsion; Resonance; Shape; Waveguide theory;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on
Print_ISBN :
0-7803-7486-X
DOI :
10.1109/ICMMT.2002.1187828
