CPW fed leaky wave antenna using resonance gain

The microstrip fed multilayer leaky wave antenna using the resonance gain phenomenon has been investigated. The motivation for this work arose from the need to design a concealed feed to the antenna which is crucial for the deployment of this structure in a combat environment This paper presents the design of a single CPW feed to the multilayer structure and its radiation characteristics. It is shown that the antenna achieves a resonance gain of about 15.83 dBi at broadside at 20 GHz with a 20 dB F/B ratio, reduced surface wave coupling and good cross-polarisation levels. Measurements are in progress to verify the simulated results.