A Wide Range Tunable Bandpass Filter Using Imaginary Resonance Phenomena

Yokano, Satoru; Chiba, Takashi; Shotaro, Nagai; Hirabayashi, Kazuo; Adachi, Nobuyuki

doi:10.23919/apmc.2018.8617561

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…With increasing demands for high data rate services and the miniaturization of portable radio devices, the challenge of supporting multiple air interface technologies that enable compact multi-mode multi-band devices has become critical [1,2]. Currently, the market for electrically controllable matching circuits, tunable voltage-controlled oscillators (VCOs), tunable filters, and multi-band power amplifier modules (PAM) is growing rapidly [3][4][5]. Digitally tunable capacitors using complementary metal-oxide-semiconductors (CMOS) or microelectromechanical system (MEMS) switches have been widely used to meet these technical trends [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Digitally-Controlled Bondwire Inductor with High Quality Factor and Wide Tuning Range

Lee

2020

J Electromagn Eng Sci

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A tunable bondwire inductor (TBI) with high-quality factor and wide tuning range is presented. The proposed TBI is fabricated on a single chip by combining a single-pole four-throw (SP4T) switch integrated circuit (IC) and four bondwire inductors on a package substrate. The SP4T switch IC is fabricated using 180 nm silicon-on-insulator (SOI) complementary metal-oxide-semiconductor (CMOS) technology. The fabricated TBI chip exhibits a 521% tuning range of inductance from 1.77 to 11 nH at 0.1 GHz and a relatively high-quality factor. To the knowledge of the authors, the results of this work demonstrate the best combined performance of inductance tuning range and quality factor.

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