Title :
Millimeter-wave microstrip-to-waveguide transition operating over broad frequency bandwidth
Author :
Deguchi, Yusuke ; Sakakibara, Kunio ; Kikuma, Nobuyoshi ; Hirayama, Hiroshi
Author_Institution :
Nagoya Inst. of Technol., Japan
Abstract :
A broadband microstrip-to-waveguide transition is developed in the millimeter-wave band. Since novel geometrical features are applied in the printed pattern on the substrate, the proposed transition operates over a quite broad frequency bandwidth due to its double resonance. The two resonant frequencies can be controlled independently according to dimensions of the structure for required bandwidth and reflection level. Two versions of transition are designed and reliability is confirmed by measurements in the millimeter-wave band. The design frequency is 76.5 GHz. The bandwidth 12.9 GHz (16.8 %) is obtained for reflection level lower than -30 dB. In the other design for broadband, the bandwidth for reflection level lower than -20 dB results in 24.9 GHz (32.5%).
Keywords :
microstrip transitions; millimetre wave devices; reliability; waveguide transitions; 12.9 GHz; 24.9 GHz; 76.5 GHz; broad frequency bandwidth; broadband microstrip-to-waveguide transition; double resonance; microstrip circuits; millimeter wave circuits; Bandwidth; Dielectric substrates; Microstrip antennas; Millimeter wave circuits; Millimeter wave communication; Millimeter wave measurements; Millimeter wave technology; Planar waveguides; Radio frequency; Waveguide transitions;
Conference_Titel :
Microwave Symposium Digest, 2005 IEEE MTT-S International
Print_ISBN :
0-7803-8845-3
DOI :
10.1109/MWSYM.2005.1517163