PIER Letters
 
Progress In Electromagnetics Research Letters
ISSN: 1937-6480
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UNIVERSAL COMPENSATION METHOD FOR TRANS-DIRECTIONAL COUPLED-LINE BASED PLANAR BALUN WITH CONNECTING SEGMENT

By X. Jia, S.-J. Fang, H. Liu, and Z. Wang

Full Article PDF (308 KB)

Abstract:
In the paper, a universal compensation method is presented to improve the imbalance of a trans-directional coupled-line (TRD-CL) based balun caused by the inevitable physical separation between the TRD-CLs. Using this method, the input mismatch and output imbalance can be effectively solved. Moreover, since the compensation is achieved by shortening the two TRD-CLs instead of adding additional stubs, size miniaturization is maintained. Design formulas are derived using the signal flowchart and even-odd mode analysis. A prototype operating at 1.6 GHz is also designed and measured to verify the proposed method.

Citation:
X. Jia, S.-J. Fang, H. Liu, and Z. Wang, "Universal Compensation Method for Trans-Directional Coupled-Line Based Planar Balun with Connecting Segment," Progress In Electromagnetics Research Letters, Vol. 83, 91-97, 2019.
doi:10.2528/PIERL19013003

References:


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