Title :
Broadband CPW-fed active monopole antenna for WLAN applications
Author :
Jeong, Yohan ; Jee, Yong
Author_Institution :
Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea
Abstract :
A coplanar waveguide (CPW)-fed monopole as a radiating element of an active antenna amplifier is proposed for chip size realization. A monopole antenna, which is integrated with a high electron mobility transistor (HEMT), demonstrates stable oscillations at a frequency of around 5.8 GHz within a 10% bandwidth of 580 MHz (from 5.58 to 6.16 GHz). The active antenna has dimensions of 9 mm times 8 mm times 1.3 mm. The measurement results show that the antenna effective isotropic radiated power (EIRP) is +10.5 dBm, power added efficiency (PAE) 30.3%, and the phase noise at 100 kHz offset -88.3 dBc/Hz.
Keywords :
active antennas; amplifiers; antenna feeds; antenna radiation patterns; broadband antennas; coplanar waveguides; monopole antennas; transistors; wireless LAN; EIRP; HEMT; PAE; WLAN application; active antenna amplifier; broadband CPW-fed active monopole antenna; chip size realization; coplanar waveguide; effective isotropic radiated power; high electron mobility transistor; power added efficiency; radiating element; Antenna measurements; Bandwidth; Broadband amplifiers; Broadband antennas; Coplanar waveguides; Frequency; HEMTs; MODFETs; Power measurement; Wireless LAN; CPW-fed monopole; active antenna; antenna amplifier; monopole antenna;
Conference_Titel :
AFRICON, 2009. AFRICON '09.
Conference_Location :
Nairobi
Print_ISBN :
978-1-4244-3918-8
Electronic_ISBN :
978-1-4244-3919-5
DOI :
10.1109/AFRCON.2009.5308074
