A Compact Bias T Used for Front-end of Millimeter Imaging System

DOI

10.2991/mecae-18.2018.72How to use a DOI?

Keywords

bias T, triangle resonator, band-stop resonator, front-end.

Abstract

As millimeter wave (MMW) electronic technologies have matured, MMW receiver research is also in the rapid development which includes front-end and frequency synthesizer. They all needed isolation between RF and DC bias. The good design bias T which can realize high isolation between DC bias source port and RF ports is necessary. In this paper, two new reduced-sized broad-band resonators are introduced which can be used in the active circuits. Their bandwidths are controllable and the performance of one bias T is better than the same size of the compact bias T whose size reduction is 55.55% of the conventional radial stubs. Its improvement of S11, S12, and S13 is 18.8, 8.2, and 28.3% respectively. The performance of another kind bias T has a slightly inferior, but it has good stop-band characteristic at 2 GHz and 8 GHz where the 4 GHz signal is needed. The two kinds of bias T perform as expected and the results are in good agreement with the simulated results, and have been used in the front-end circuit of our BHU-2D-U passive MMW imaging system.

Copyright

© 2018, 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  - Baohua Yang
AU  - Huajie Zou
AU  - Jungang Miao
PY  - 2018/03
DA  - 2018/03
TI  - A Compact Bias T Used for Front-end of Millimeter Imaging System
BT  - Proceedings of the 2018 International Conference on Mechanical, Electronic, Control and Automation Engineering (MECAE 2018)
PB  - Atlantis Press
SN  - 2352-5401
UR  - https://doi.org/10.2991/mecae-18.2018.72
DO  - 10.2991/mecae-18.2018.72
ID  - Yang2018/03
ER  -