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- Title
A Novel Filter with Reconfigurable Bandwidth or Transmission Zeros Based on a Multiple-Mode Stub-Loaded Resonator.
- Authors
Liangzu Cao; Shouzhan Li
- Abstract
This paper presents a novel bandpass filter with reconfigurable bandwidth or transmission zeros. The proposed filter is based on a multiple-mode stub-loaded resonator. Three PIN diodes are utilized as switching elements to achieve four switchable operating states. The measurement results indicate that the 3 dB fractional bandwidth (FBW) of the filter can be varied from 32.3% to 70% at the centre frequency of 2.2 GHz, and the stopband attenuation is higher than 35 dB. The filter size is only about 0.28λg × 0.19λg.
- Subjects
PIN diodes; BANDWIDTHS; RESONATORS; BANDPASS filters; TRANSMISSION zeros
- Publication
Progress in Electromagnetics Research Letters, 2024, Vol 119, p7
- ISSN
1937-6480
- Publication type
Article
- DOI
10.2528/PIERL24021201