A fully tunable filter based on the improved tubular structure. Issue 4 (10th January 2022)

• Record Type: Journal Article
• Authors: Zhang, Zhonghai; He, Yun; Gan, Li; Chen, Lin; Wu, Aiting; Zhang, Pengquan
• Is Part Of: International journal of RF and microwave computer-aided engineering. Volume 32:Issue 4(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-01-10
• Subjects: better expansibility -- fully tunable filter -- tubular structure; Microwave devices -- Computer-aided design -- Periodicals; Computer-aided engineering -- Periodicals; 621.3813
• DOI: 10.1002/mmce.23068
• Languages: English
• ISSNs: 1096-4290

Abstract

Abstract: A fully tunable bandpass filter adopting a novel tubular type structure was presented in this letter. The fully tunable bandpass filter was mainly consisted of π type tunable resonators and coupling reactance. The π type tunable resonators were mainly consisted of step impedance lines and tunable capacitance. Adopting this scheme, the frequency and 3 dB bandwidth of the bandpass filter can all be tuned independently in certain range. This type of fully tunable bandpass filter has a better expansibility and can be easily designed to meet other performance in actual requirements.