A Subharmonic Mixer Using a Planar Doped Barrier Diode with Symmetric Conductance
ARMY ELECTRONICS TECHNOLOGY AND DEVICES LAB FORT MONMOUTH NJ
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Planar doped barrier PDB diodes with symmetric I-V characteristics have been successfully used in a subharmonically-pumped coplanar stripline mixer circuit. A conversion loss around 6 dB has been measured using a 1.2 GHz local oscillator at a pump power of 7 dBm and a 2 GHz signal frequency for large area, 100 nanometer diameter PDB mesa diodes. The particular advantages of this device structure are that a single PDB replaces two critically matched Schottky barrier diodes in conventionally balanced mixers, and the PDBs designable barrier height reduces the local oscillator power requirement.
- Electrical and Electronic Equipment
- Solid State Physics