This paper presents the modeling and implementation of planar passive and active cavity-backed antennas in substrate integrated waveguide (SIW) technology. The cavity-backed topology helps suppressing the undesired surface-wave modes and may provide better phase noise performance in the antenna oscillator. The use of SIW technology allows for a compact and cost-effective implementation of the structure. The design of the active antenna involves both electromagnetic full-wave modeling for the radiating structure and nonlinear analysis of the active circuitry through harmonic balance and transient simulations. Single substrate prototypes of both passive and active antennas operating in X band are presented and measured, showing good agreement with simulated results.
|Number of pages||8|
|Journal||Applied Computational Electromagnetics Society Journal|
|Publication status||Published - Aug 2010|
- Active antenna
- cavity-backed antenna
- harmonic-balance technique
- substrate integrated waveguide (SIW)