Ming-Guang Chen

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A Microstrip Ultra-Wideband Bandpass Filter With Cascaded Broadband Bandpass and Bandstop Filters

Ching-wen Tang, Ming-Guang Chen
IEEE Transactions on Microwave Theory and…
2007

This paper develops a novel ultra-wideband bandpass filter by cascading a broadband bandpass filter with another broadband bandstop filter. Properly selected impedances of transmission lines achieve… (More)

Synthesizing Microstrip Branch-Line Couplers With Predetermined Compact Size and Bandwidth

Ching-wen Tang, Ming-Guang Chen
IEEE Transactions on Microwave Theory and…
2007

A new method for designing the microstrip branch- line couplers with predetermined compact size and bandwidth is proposed in this paper. With the proposed approach, the size of the quarter-wavelength… (More)

Miniaturization of Microstrip Branch-Line Coupler With Dual Transmission Lines

Ching-wen Tang, Ming-Guang Chen, Chih-Hung Tsai
IEEE Microwave and Wireless Components Letters
2008

The dual transmission lines are proposed to replace conventional quarter-wavelength transmission lines for a compact microstrip branch-line coupler in this study. The developed coupler can be easily… (More)

Angiomatoid fibrous histiocytoma: unusual sites and unusual morphology

Gang Chen, Andrew L Folpe, +4 authors John Chan
Modern Pathology
2011

Angiomatoid fibrous histiocytoma is a soft tissue neoplasm of low malignant potential, typically occurring in the superficial soft tissues of the extremities in children and young adults. Occurrence… (More)

Design of Planar Complex Impedance Transformers With the Modified Coupled Line

Ming-Guang Chen, Teng-Bang Hou, Ching-wen Tang
IEEE Transactions on Components, Packaging and…
2012

Complex impedance transformers with the modified coupled line are provided in this paper. With the modified coupled line as proposed, the electrical length of the impedance transformer would be… (More)

Wide Stopband Parallel-Coupled Stacked SIRs Bandpass Filters With Open-Stub Lines

Ching-wen Tang, Ming-Guang Chen
IEEE Microwave and Wireless Components Letters
2006

In this letter, spurious passband suppression in parallel-coupled stacked stepped-impedance-resonators (SIRs) bandpass filters (BPFs) by means of open-stub lines is proposed and implemented. These… (More)

Realization of Ultra-Compact Planar Microstrip Branch-Line Couplers With High-Impedance Open Stubs

Ching-wen Tang, Ming-Guang Chen, Janne-Wha Wu
2007 IEEE/MTT-S International Microwave Symposium
2007

The ultra-compact microstrip branch-line couplers are proposed in this paper. Using the provided criteria to shorten the lengths of four quarter-wavelength transmission lines, the sizes of… (More)

Closed-loop power control of radio frequency power amplifier module with an on-chip embedded power detector

Janne-Wha Wu, Sheng-Wen Chen, Ching-wen Tang, Ming-Guang Chen
2006 Asia-Pacific Microwave Conference
2006

A quad-band GSM/GPRS power amplifier module is designed with a built-in ability of RF power transmitting control. Within the RF power transmitting control loop, a RF power detecting circuit with… (More)

Adopting the broadside coupled line for the design of an impedance transformer

Ming-Guang Chen, Ching-wen Tang, Teng-Bang Hou, Janne-Wha Wu
2011 IEEE MTT-S International Microwave Symposium
2011

A compact impedance transformer with the broadside coupled line is provided in this paper. With the assistant of the proposed broadside coupled line, the electrical length of the impedance… (More)

Design of dual-band bandpass filters with short-end coupled lines

Ching-wen Tang, Wei-Ting Liu, Ming-Guang Chen, Yuan-Chih Lin
2009 European Microwave Conference (EuMC)
2009

Novel dual-band bandpass filters are proposed in this paper. With the assistance of symmetrical feeding, the short-end coupled lines are adopted for the main structure of the proposed filter.… (More)

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