A low band cellular terminal antenna impedance tuner in 130nm CMOS-SOI technology

Jonas Lindstrand, Ivaylo Vasilev, Henrik Sjöland

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceedingPeer review

Sammanfattning

This paper presents a low band antenna impedance tuner in 130nm CMOS-SOI technology. It consists of three digitally controlled switched capacitor banks and two off-chip inductors and is intended for use in terminals supporting modern cellular standards like WCDMA and LTE. By using a negative gate bias in the off state, linearity can be improved and maintained. Measurements show an OIP3 exceeding +55dBm for all measured impedance states, which cover a VSWR of up to 5.4. The measured minimum loss is 1dB or lower in the frequency range from 700–900MHz with spurious emissions below −30dBm at +33dBm input power. The switched capacitors are implemented with eight stacked transistors to yield a voltage handling of at least 20V, and in order to handle the large voltages custom designed capacitors are used.
Originalspråkengelska
Titel på värdpublikation[Host publication title missing]
FörlagIEEE - Institute of Electrical and Electronics Engineers Inc.
Sidor459-462
Antal sidor4
ISBN (tryckt)978-1-4799-5694-4
DOI
StatusPublished - 2014
EvenemangEuropean Solid State Circuits Conference (ESSCIRC), 2014 - Venezia Lido, ITALY, Venice, Italien
Varaktighet: 2014 sep. 222014 sep. 26
Konferensnummer: 40

Publikationsserier

Namn
ISSN (tryckt)1930-8833

Konferens

KonferensEuropean Solid State Circuits Conference (ESSCIRC), 2014
Land/TerritoriumItalien
OrtVenice
Period2014/09/222014/09/26

Ämnesklassifikation (UKÄ)

  • Elektroteknik och elektronik

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