Title :
Broadband 7 GHz VCO in mHEMT technology
Author :
Ferndahl, Mattias ; Zirath, Herbert
Author_Institution :
Microwave Electron. Lab., Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
The design and characterization of a broadband VCO in a 0.15 μm mHEMT technology is presented. The VCO have an output power of 0 dBm and a broad output frequency from 6.5 to 7.4 GHz using a wide multi fingered mHEMT as varactor. Phase noise is -87 dBc/Hz at 100 kHz offset exhibiting a 30 dB/decade slope due to large flicker noise sources. A comparison both to a similar pHEMT VCO and other pHEMT VCOs in the literature is included.
Keywords :
HEMT integrated circuits; microwave oscillators; phase noise; varactors; voltage-controlled oscillators; 0.15 micron; 100 kHz; 6.5 to 7.4 GHz; mHEMT technology; pHEMT VCO; phase noise; varactor; voltage controlled oscillator; 1f noise; Frequency; HEMTs; PHEMTs; Performance gain; Phase noise; Transceivers; Voltage; Voltage-controlled oscillators; mHEMTs; 60 GHz; VCO; WLAN; mHEMT; pHEMT;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606413
