CMOS based Tunable Matching Networks for cellular handset applications

Author

Whatley, Richard ; Ranta, Tero ; Kelly, Dylan

Author_Institution

Peregrine Semicond., San Diego, CA, USA

fYear

2011

fDate

5-10 June 2011

Firstpage

1

Lastpage

4

Abstract

The explosion in the number of connected cellular devices and ever-increasing data bandwidth requirements has increased the number of bands a modern cellular device must support. This places stringent requirements on cellular handset antennas, as they need to cover more bands than ever before, while meeting increasing Total Radiated Power (TRP) requirements. A potential solution to this problem is achieved by the use of Tunable Matching Networks, which can maximize the transmitted radiated performance and receive sensitivity by optimizing the impedance match between the RF Front End and the Antenna. This paper outlines the challenging requirements placed on tunable components, presents a Tunable Matching Network utilizing Digitally Tunable Capacitors (DTCs), and proposes a method for evaluating the improvement this network brings to the cellular handset.

Keywords

CMOS integrated circuits; capacitors; cellular radio; impedance matching; mobile antennas; mobile handsets; CMOS based tunable matching networks; RF front end; cellular devices; cellular handset; cellular handset antennas; data bandwidth; digitally tunable capacitors; impedance matching; total radiated power; Antennas; Impedance; Radio frequency; Switches; Telephone sets; Tuners; CMOS-on-Sapphire; DTC; Digitally Tunable Capacitor; Reconfigurable RF Front-end; TIS; TRP; Tunable Matching Networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (MTT), 2011 IEEE MTT-S International

Conference_Location

Baltimore, MD

ISSN

0149-645X

Print_ISBN

978-1-61284-754-2

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2011.5972913

Filename

5972913