Abstract
Tunable electromagnetic crystal (EMXT) surfaces are used as rectangular waveguide sidewalls to provide uniform excitation for quasi-optical power amplifiers. InP hetero-barrier varactors are monolithically integrated into periodic metal-dielectric structures to realize a reconfigurable EMXT surface that has a tunable resonance frequency from 30 to 45 GHz. Real-time reconfigurable (30-40 GHz) and low-loss quasi-TEM wave-front control with only 2-mm long EMXT waveguide section is demonstrated. Experimental results are in good agreement with design simulations. Such waveguides can be readily integrated into an intelligent RF front-end with self-assessment and self-adjustment capabilities.
Original language | English (US) |
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Pages (from-to) | 404-406 |
Number of pages | 3 |
Journal | IEEE Microwave and Wireless Components Letters |
Volume | 14 |
Issue number | 9 |
DOIs | |
State | Published - Sep 1 2004 |
Externally published | Yes |
Keywords
- Electromagnetic crystal (EMXT) surfaces
- Hetero-barrier varactors (HBV)
- Transverse electromagnetic (TEM)
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering