Title :
A diode mixer with harmonic-distortion suppression
Author :
Mitra, S.G. ; Maas, S.A.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
It is shown that terminating the second and third LO harmonics and associated mixing frequencies in a short circuit results in substantial reduction in a diode mixer´s harmonic distortion. It was found experimentally that the second-harmonic distortion level dropped a maximum of 28.7 dBm, and the third-harmonic distortion level also dropped a maximum of 16 dBm. The practical possibility of improving IM distortion levels is established. This technique should prove valuable in the lowering of IM distortion levels of diode mixers.<>
Keywords :
electric distortion; interference suppression; intermodulation; mixers (circuits); solid-state microwave circuits; 10 GHz; IM distortion levels; IMD-reduction; SHF; diode mixer; harmonic-distortion suppression; second-harmonic distortion; third-harmonic distortion; Circuit optimization; Circuit testing; Diodes; Frequency; Harmonic distortion; Harmonics suppression; Impedance measurement; Intermodulation distortion; Microstrip; Signal generators;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
