NDLI: A VHF tunable lumped-element filter with mixed electric-magnetic couplings

Content Provider	IEEE Xplore Digital Library
Author	Kaiyuan Zeng Psychogiou, D. Peroulis, D.
Copyright Year	2015
Description	Author affiliation: Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA (Kaiyuan Zeng; Psychogiou, D.; Peroulis, D.)
Abstract	A lumped-element varactor-tuned bandpass filter (BPF) with variable center frequency and constant absolute bandwidth (BW) is presented in this paper. Mixed electric/magnetic inter-resonator coupling schemes-implemented with parallel LC resonators-facilitate the actualization of an almost constant BW passband over a wide frequency tuning range (1.6:1). The linearity performance of the varactor-tuned BPF is studied and an investigation to reduce the RF swing on the filters' tuning elements is presented. A third-order lumped-element BPF was designed, built and measured. It exhibited a tunable center frequency between 230-370 MHz with constant 3-dB bandwidth of 56.3 ± 0.2 MHz across the entire frequency band. Within this band, the insertion loss was measured between 0.9-1.4 dB and the third-order intermodulation intercept point (IIP3) was measured between 28.1-41.4 dBm.
Starting Page	1
Ending Page	4
File Size	842043
Page Count	4
File Format	PDF
ISBN	9781479975211
DOI	10.1109/WAMICON.2015.7120421
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-04-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Area measurement Resonant frequency Resonator filters Switches Varactors Linearity varactor Bandpass filter constant bandwidth lumped-element filter tunable filter tunable frequency
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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