A Compact Tunable Triple Stop-Band Filter Based on Different Defected Microstrip Structures

Authors

  • Yingsong Li 1 College of Information and Communications Engineering Harbin Engineering University, Harbin, Heilongjiang 150001, China , 2 National Space Science Center Chinese Academy Sciences, Beijing 100190, China
  • Shengyuan Luo College of Information and Communications Engineering Harbin Engineering University, Harbin, Heilongjiang 150001, China
  • Wenhua Yu 2COMU, Inc., 4031 University Drive, Suite 100, Fairfax, VA 22030, USA

Keywords:

Defected microstrip structure, meander line slot, spur line, triple stop-band filter, U-shaped slot

Abstract

A compact triple stop-band filter based on different defected microstrip structures is proposed, fabricated and measured to filter out the undesired narrowband signal interferences against UWB systems. A meander line slot (MLS), a U-shaped slot (USS) and a spur line (SL) are etched on a 50-Ohm microstrip line to achieve the expected triple stop-band function and to provide a good tunable characteristic by selecting the proper dimensions of the MLS, USS and SL. The equivalent circuit model and its simulations are presented to evaluate the designed triple stop-band filter. Simulated and measured results are given to demonstrate that the proposed triple stop-band filter has controllable center frequencies and compact size.

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Published

2021-07-22

How to Cite

Yingsong Li, Shengyuan Luo, & Wenhua Yu. (2021). A Compact Tunable Triple Stop-Band Filter Based on Different Defected Microstrip Structures. The Applied Computational Electromagnetics Society Journal (ACES), 33(07), 752–757. Retrieved from https://journals.riverpublishers.com/index.php/ACES/article/view/9067

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