Abstract
In this work we present a Schottky diode grid mixer suitable for mixing or detecting quasi-optical signals. The mixer is a planar bow-tie grid structure periodically loaded with diodes. A simple transmission line model is used to predict the reflection coefficient of the grid to a normally incident plane wave. The grid mixer power handling and dynamic range scales as the number of devices in the grid. A 10 GHz l00-element grid mixer has shown an improvement in dynamic range of 16.3 to 19.8 dB over an equivalent single-diode mixer. The conversion loss and noise figure of the grid are equal to that of a conventional mixer. The quasi-optical coupling of the input signals makes the grid mixer suitable for millimeter-wave and submitlimeter- wave applications by eliminating waveguide sidewall losses and machining difficulties. The planar property of the grid potentially allows thousands of devices to be integrated monolithically.
| Original language | English |
|---|---|
| Title of host publication | Active Antennas and Quasi-Optical Arrays |
| Publisher | John Wiley and Sons Inc. |
| Pages | 192-197 |
| Number of pages | 6 |
| ISBN (Electronic) | 9780470544068 |
| ISBN (Print) | 0780334868, 9780780334861 |
| DOIs | |
| Publication status | Published - 2009 Jan 1 |
| Externally published | Yes |
Keywords
- Equivalent circuits
- Harmonic analysis
- Integrated circuit modeling
- Power harmonic filters
- Schottky diodes
- Slabs
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)