1-2hit |
Toshihisa KAMEI Hisashi MORISHITA Chun-Tung CHEUNG David B. RUTLEDGE
As the capacity of the personal computer and workstation increase rapidly, many electromagnetic simulators are widely used. In this paper, Ansoft's High Frequency Structure Simulator (HFSS), which is a commercial software product, is applied to design a mode converter operating at 35 GHz is fabricated based on the simulation results. The numerical results are in good agreement with the measured data.
Jongsuck BAE Satoru SUGAWARA Fumikazu TAKEI Hiroshi KIKUYAMA Tetsu FUJII Koji MIZUNO
An equivalent circuit for designing a coherent power combiner using a quasi-optical resonator has been developed. In the resonator, large numbers of devices (HEMT, HBT, etc. ) are arrayed two dimensionally and mounted on a surface of a metal grooved-mirror. A newly developed equivalent circuit for the resonator has been constructed using a transmission-line model. Experiments performed at Ku-band have shown that oscillation frequencies in a 33 HEMT array oscillator can be predicted with errors of less than 1% by using this equivalent circuit.