@inproceedings{3c7203ae20d248469b1b599b6451b2d6,
title = "A VHF tunable lumped-element filter with mixed electric-magnetic couplings",
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.",
keywords = "Bandpass filter, Constant bandwidth, Lumped-element filter, Tunable filter, Tunable frequency, Varactor",
author = "Kaiyuan Zeng and Dimitra Psychogiou and Dimitrios Peroulis",
note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 2015 16th IEEE Annual Wireless and Microwave Technology Conference, WAMICON 2015 ; Conference date: 13-04-2015 Through 15-04-2015",
year = "2015",
month = jun,
day = "9",
doi = "10.1109/WAMICON.2015.7120421",
language = "English",
series = "2015 IEEE 16th Annual Wireless and Microwave Technology Conference, WAMICON 2015",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2015 IEEE 16th Annual Wireless and Microwave Technology Conference, WAMICON 2015",
address = "United States",
}