| Design of T/R Switch Using LTCC Technology |
| Sung-Hun Sim, Chong-Yun Kang1, Ji-Won Park1, Young-Joong Yoon2, hyun-Jai Kim1, Hyung-Wook Park3, Seok-Jin Yoon1 |
Thin Film Materials Research Center, Department of Electrical Engineering, Kyungwon University
1Thin Film Material Research Center, KIST
2Department of Electrical and Electronic Engineering, Yonsei University
3Department of Electrical Engineering, Kyungwon University |
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| ABSTRACT |
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In this paper, a novel design of multilayer ceramic-based Transmit/Receive (T/R) switch using Low Temperature Co-fired Ceramic (LTCC) technology have been presented. Compact T/R switch has been designed by transforming quarter-wave transmission line to its lumped equivalent circuit. Especially, high-Q three dimensional inductors with double strip have been proposed and incorporated. The proposed inductor has been modeled by multi-conductor coupled lines. A measured inductor quality factor (Q) of 80 and a Self-Resonance Frequency (SRF) of 6.6 GHz have been demonstrated. The inductor library has been incorporated into the design of WCDMA T/R switch. |
| Key words:
LTCC, High Q inductor, T/R switch, Double strip, Coupled line |
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