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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2012-12-25
Differential Transformer Using Bonder-Wires and Patterns on a Printed Circuit Board for RF Circuit Applications
By
Byungjoo Kang,

    Dr. Byungjoo Kang

    School of Electronic Engineering, College of Information Technology

    Soongsil University

    Republic of Korea

    Homepage

Hoyong Hwang,

    Dr. Hoyong Hwang

    School of Electronic Engineering, College of Information Technology

    Soongsil University

    Republic of Korea

    Homepage

Changkun Park

    Dr. Changkun Park

    School of Electronic Engineering

    Soongsil University

    South Korea

    Homepage

Progress In Electromagnetics Research, Vol. 135, 363-371, 2013
doi:10.2528/PIER12120402 | Google Scholar

Abstract
A transformer that uses bonder-wires and printed circuit board (PCB) patterns is proposed for RF circuit applications. The proposed transformer can be constructed without any additional processes. The PCB patterns are implemented using a typical FR4 substrate and gold bonder wires are used. The self-inductance of the transformer can be controlled according to the number of unit-transformers. Although the size of the transformer is larger than that of a fully-integrated transformer, the maximum available gain (MAG) is almost identical to that of other-types of transformers, which require additional cost or bulky size to obtain sufficient inductance. Additionally, we proposed a method to design the transformer with a symmetric structure for differential RF CMOS circuit applications. The transformer can applied to GHz-order RF CMOS circuits as an input and output matching component with low loss characteristics.
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Citation
Byungjoo Kang, Hoyong Hwang, and Changkun Park, "Differential Transformer Using Bonder-Wires and Patterns on a Printed Circuit Board for RF Circuit Applications," Progress In Electromagnetics Research, Vol. 135, 363-371, 2013.
doi:10.2528/PIER12120402
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