Title :
Equivalent circuit of coaxial (APC-7)-to-microstrip transition
Author_Institution :
Selenia S.p.A., Research Department, Roma, Italy
Abstract :
A simple distributed and lumped-constant circuit model is presented for a coaxial (APC-7)-to-microstrip transition, commonly used to measure microwave integrated circuits. The model, which also includes a resistance, was experimentally verified by an automatic network analyser (a.n.a.) in the S, C and X bands. For the critical v.s.w.r. parameter, agreement was found to be within a percentage fraction and the transmission coefficient |S21| was in accordance with the a.n.a. accuracy.
Keywords :
coaxial cables; computer-aided circuit analysis; equivalent circuits; integrated circuits; microwave measurement; strip line components; waveguide couplers; APC-7 coaxial cable; C-band; S-band; VSWR; X-band; automatic network analyser; equivalent circuit; transmission coefficient;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19750168
