Intermodulation nulling in anti-parallel diode pair mixers

Author

Gutta, Venkata ; Fattorini, Tony ; Parker, Anthony

Author_Institution

Macquarie Univ., Sydney

fYear

2006

fDate

12-15 Dec. 2006

Firstpage

461

Lastpage

464

Abstract

Anti-parallel diode pair mixers offer the benefit of intermodulation nulling without conversion nulls. However, the practicality of intermodulation nulling in improving mixer distortion performance is dictated by the trade-off between conversion loss and local oscillator drive power requirements. In systems where noise figure is not critical and availability of local oscillator drive power is at a premium, intermodulation nulling can be most useful. A correlation between third-degree non-linearity and intermodulation null with respect to local oscillator drive is found. This correlation allows the designer to optimize the intermodulation distortion for a given local oscillator power by changing the mixer source and load impedances.

Keywords

intermodulation distortion; mixers (circuits); anti-parallel diode pair mixers; conversion loss; intermodulation distortion; intermodulation nulling; load impedances; local oscillator drive power requirements; mixer distortion performance; mixer source; noise figure; third-degree non-linearity; Distortion measurement; Frequency; Intermodulation distortion; Local oscillators; MESFETs; Noise figure; Nonlinear distortion; Predictive models; Schottky diodes; Voltage; Anti-parallel diode pair mixer; Intermodulation nulling; Schottky diode; Volterra series;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2006. APMC 2006. Asia-Pacific

Conference_Location

Yokohama

Print_ISBN

978-4-902339-08-6

Electronic_ISBN

978-4-902339-11-6

Type

conf

DOI

10.1109/APMC.2006.4429463

Filename

4429463