DocumentCode :
2153401
Title :
Regenerative GaAs MMIC Frequency Dividers for 28 and 14 GHz
Author :
Landén, Lars ; Fager, Christian ; Zirath, Herbert
Author_Institution :
Chalmers University of Technology, Department of Microelectronics, landen@ep.chalmers.se
fYear :
2000
fDate :
Oct. 2000
Firstpage :
1
Lastpage :
3
Abstract :
The design and characterization of two regenerative frequency dividers based on a commercial foundry GaAs HEMT-process are described. The dividers are intended to be used in a 56 GHz phase locked frequency generator. The main goal is to design dividers that have high input sensitivity and low DC-power consumption. The dividers are regenerative and consist of a resistive mixer followed by a frequency selective amplifier. The regenerative divider, compared to a digital divider, consumes less DC-power and has a higher operational frequency. The output of the amplifier is fed back into the LO-port of the mixer through a lumped element coupler. The dividers occupy 4.5 mm2 each. Both dividers deliver 7 dBm output power with a rejection of the fundamental frequency of more than 15 dB and a DC-power consumption of 100 mW. The 14 GHz and 28 GHz dividers have 3 dB bandwidths of 11% and 5.7% respectively.
Keywords :
Bandwidth; Circuit simulation; Coupling circuits; Foundries; Frequency conversion; Gallium arsenide; HEMTs; MMICs; Microelectronics; Microwave transistors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Conference, 2000. 30th European
Conference_Location :
Paris, France
Type :
conf
DOI :
10.1109/EUMA.2000.338690
Filename :
4139703
Link To Document :
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