Title :
A low cost compact subharmonically pumped self oscillating mixer for MMIC applications
Author :
Roberts, Michael ; Iezekiel, Stavros ; Snowden, Christopher M.
Author_Institution :
Sch. of Electron. & Electr. Eng., Leeds Univ., UK
Abstract :
A low cost W-Band MMIC pHEMT subharmonically pumped self oscillating mixer has been designed and characterised. The mixer uses a single device to achieve mixing and doubling simultaneously. The mixer uses the enhanced second harmonic of this oscillation to mix with the RF. A novel feedback arrangement is also described. The feedback enables oscillation at half the LO frequency and also ensures a matchable RF input impedance. Owing to the reduced device count the mixer has a lower DC power consumption, is compact and reliable
Keywords :
HEMT integrated circuits; MMIC mixers; circuit feedback; impedance matching; DC power consumption; RF impedance matching; W-band MMIC pHEMT; feedback; second harmonic; subharmonically pumped self oscillating mixer; Band pass filters; Costs; Feedback circuits; Impedance; MMICs; Mixers; Oscillators; PHEMTs; Radar applications; Radio frequency;
Conference_Titel :
High Frequency Postgraduate Student Colloquium, 1997
Conference_Location :
Leeds
Print_ISBN :
0-7803-3951-7
DOI :
10.1109/HFPSC.1997.651669
