Novel Wideband Transition Between Coplanar Waveguide and Microstrip Line
Novel Wideband Transition Between Coplanar Waveguide and Microstrip Line
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DOI:
10.1109/tmtt.2010.2050094
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发表时间:
2010-07-01
影响因子:
4.3
通讯作者:
Mirshekar-Syahkal, Dariush
中科院分区:
文献类型:
--
作者:
Bulja, Senad;Mirshekar-Syahkal, Dariush
A novel wideband vertical transition for connecting the coplanar waveguide (CPW) to the microstrip line is proposed. This transition can be very useful for millimeter-wave packaging and vertical interconnects. It is multilayered, partly tapered, and consists of only one via interconnect. Two different transitions are designed. The first transition allows connectivity of a CPW with Z(c) = 50 Omega to a microstrip line with Z(c) = 16 Omega with a bandwidth of 10-60 GHz. The second transition has the same characteristic impedance, Z(c) = 50 Omega, at the two ports. In this case, the operating frequency is from 40 MHz to 60 GHz. The return losses of both transitions are generally lower than 10 dB over their indicated frequency ranges, while the maximum measured insertion losses are 1.8 and 2.4 dB for the first and second transition, respectively. To extract the S-parameters of the transitions, a new thru-line technique, based on the standard thru-reflect-line two-tier calibration is introduced. Simulation and experimental results, showing good agreement, are presented and discussed.