Double-sided parallel-strip line based broadband magic-T

DOI

10.2991/aest-16.2016.89How to use a DOI?

Keywords

transmission line; impedance matching; equivalent circuit; magic-T.

Abstract

A broadband magic-T based on double-sided parallel-strip line (DSPSL) and microstrip-coplanar waveguide (CPW) transition is presented and demonstrated. The DSPSL magic-T has broad bandwidth and low phase imbalance at the sum (H) and difference (E) ports. The equivalent circuits of the proposed multilayer circuit magic-T and transition between microstrip and CPW are derived. The experimental results show that the 4GHz magic-T provides more than 68% of 1dB operating bandwidth with the average in-band insertion loss of less than 0.7dB. It also has phase and amplitude imbalance of less than 4øand 0.65 dB, respectively. This magic-T was designed as DSPLS difference inputting of port E and two sides microstrip circuit outputting of port 2 and 3, and its structure is suitable for multilayer microwave integration circuit, especially LTCC multilayer circuit.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Huimin Yu
AU  - Zhiping Liu
PY  - 2016/11
DA  - 2016/11
TI  - Double-sided parallel-strip line based broadband magic-T
BT  - Proceedings of the 2016 International Conference on Advanced Electronic Science and Technology (AEST 2016)
PB  - Atlantis Press
SP  - 668
EP  - 676
SN  - 1951-6851
UR  - https://doi.org/10.2991/aest-16.2016.89
DO  - 10.2991/aest-16.2016.89
ID  - Yu2016/11
ER  -