Reconfigurable small antenna for mobile phone using MEMS tunable capacitor

Autor: Cor Schepens, Prasadh Ramachandran, Paul A. Tornatta, Larry Morrell, Petteri Annamaa, Roberto Gaddi
Rok vydání: 2013
Předmět:
Zdroj: 2013 Loughborough Antennas & Propagation Conference (LAPC).
ISSN: 1710-2170
DOI: 10.1109/lapc.2013.6711919
Popis: In this paper we present a tunable PIFA which can be used in a mobile terminal. A NanoMech™ process enabled MEMS digital variable capacitor has been used as a capacitive load to the antenna. The antenna occupies a volume of just 1.3 cc and is targeted to be placed at the bottom corner of the device. With the help of tunability the antenna is able to cover from 704-960MHz in the low-band and 1710-2170MHz in the high-band, thus covering a wide range of frequency bands required for GSM/WCDMA/LTE systems. The MEMS device has an equivalent series inductance of less than 0.1nH hence the variation in the capacitance value with respect to frequency is less than 10%up to 5GHz. Further, the equivalent series resistance (ESR) of the digital variable capacitor is
Databáze: OpenAIRE