Design of a compact balun with three octant-wavelength coupled lines

A novel microwave balun with three coupled lines is provided in this paper. With broadside coupling and edge coupling among three coupled lines, the proposed balun is compact and a wide operating frequency range is obtained. At a central frequency of 2.45 GHz, this balun is fabricated on the FR4 pri...

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Hauptverfasser: Ching-Wen Tang, Wei-Da Cheng, Janne-Wha Wu, Yuan-Chih Lin
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Wei-Da Cheng
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Yuan-Chih Lin
description A novel microwave balun with three coupled lines is provided in this paper. With broadside coupling and edge coupling among three coupled lines, the proposed balun is compact and a wide operating frequency range is obtained. At a central frequency of 2.45 GHz, this balun is fabricated on the FR4 printed circuit board and with overall size of 1.5 mm × 1.2 mm. The prototypical balun is simulated with the full-wave electromagnetic simulator IE3D. A good match between simulated and measured results validates the proposed balun.
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subjects Balun
Circuit simulation
Couplers
Coupling circuits
Design engineering
Impedance matching
Microwave communication
Radio frequency
Reflection
Research and development
Scattering parameters
three coupled lines
title Design of a compact balun with three octant-wavelength coupled lines
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