Abstract
This letter presents the design and implementation of a single-layer, cavity-backed antenna oscillator based on substrate integrated waveguide (SIW) technology. The proposed antenna topology is particularly suitable for two-dimensional array configurations. The active circuit and the radiator are placed on opposite sides of the substrate and within the cavity area, allowing for a compact implementation. An X-band prototype was designed and fabricated, and it features frequency-tuning capability introduced by employing a varactor diode in the active circuit. The measurements showed 11.87-12.36 GHz tuning range, phase noise better than -107 dBc/Hz at 1 MHz offset, and 7% DC-to-RF conversion efficiency.
Original language | English |
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Pages (from-to) | 431-433 |
Number of pages | 3 |
Journal | IEEE Antennas and Wireless Propagation Letters |
Volume | 11 |
DOIs | |
Publication status | Published - 2012 |
Keywords
- Active antenna
- antenna oscillator
- cavity-backed antenna
- substrate integrated waveguide SIW
- ARRAY APPLICATIONS