General design equations for arbitrary odd-way filtering Bagley polygon power divider with notch band

Abstract

The general design equations are derived for arbitrary odd-way Bagley polygon power divider (BPPD) with filtering response and notch band. Firstly, conditions are derived to achieve a perfect input port impedance matching at centre frequency. Then, the formulas of introduced transmission zeros (TZs) are obtained for high-frequency selectivity, wide upper stopband and notch band. Based on the deduced equations, wideband BPPD (WBPPD), filtering BPPD (FBPPD) and FBPPD integrating notch band (FBPPD-N) with arbitrary odd-way power splitting are designed. Finally, a FBPPD-N with a wide passband bandwidth is fabricated and measured to verify the presented ideal. The experimental results indicate that the proposed FBPPD-N has compact size, high-frequency selectivity, wide upper stopband and required notch band. Consequently, the presented general design equations can provide effective guidance for the design of arbitrary odd-way power splitting FBPPD-N.

KEYWORDS:

• Bagley polygon power divider
• filtering response
• notch band

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the Fundamental Research Funds for the Central Universities under grant number 06116163.

Notes on contributors

Gaoya Dong

Gaoya Dong received the BS degree in applied physic from Xidian University, Xi 'an, China, in 2015, and the PhD degree in electronic science and technology from Beijing University of Posts and Telecommunications, Beijing, China in 2020. In 2020, she joined University of Science and Technology Beijing (USTB). She is currently a lecturer with the School of Computer and Communication Engineering, USTB. Her research interest is focus on microwave components, including planar microwave filters, power dividers, and antennas and power amplifiers.

Xiaolong Yang

Xiaolong Yang (Member, IEEE) received the BEng, MS, and PhD degrees in communication and information systems from the University of Electronic Science and Technology of China, Chengdu, China, in 1993, 1996, and 2004, respectively. He is currently a Professor with the School of Computer and Communication Engineering, Institute of Advanced Networking Technologies and Services, University of Science and Technology Beijing, Beijing, China. He has fulfilled more than 30 research projects, including the National Natural Science Foundation of China, the National Hi-Tech Research and Development Program (863 Program), and the National Key Basic Research Program (973 Program). His current research interests include optical switching and Internetworking and the next-generation Internet, microwave components. He has authored more than 80 articles and holds 16 patents in these areas.