Title :
A Subharmonic Graphene FET Mixer
Author :
Habibpour, Omid ; Cherednichenko, Sergey ; Vukusic, Josip ; Yhland, Klas ; Stake, Jan
Author_Institution :
Dept. of Microtechnol. & Nanosci., Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
We demonstrate a subharmonic resistive graphene FET mixer utilizing the symmetrical channel-resistance versus gate-voltage characteristic. A down-conversion loss of 24 dB is obtained with fRF = 2 GHz, fLO= 1.01 GHz, and fIF= 20 MHz in a 50- Ω-impedance system. Unlike conventional subharmonic resistive FET mixers, this type of mixer operates with only one transistor and does not need any balun at the local oscillator (LO) port, which makes it more compact.
Keywords :
UHF field effect transistors; UHF mixers; baluns; graphene; oscillators; balun; down-conversion loss; frequency 1.01 GHz; frequency 2 GHz; frequency 20 MHz; gate-voltage characteristic; local oscillator port; loss 24 dB; resistance 50 ohm; subharmonic resistive graphene FET mixer; symmetrical channel-resistance; FETs; Impedance; Logic gates; Mixers; Radio frequency; Resistance; FETs; graphene; subharmonic resistive mixers;
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2011.2170655
