Application Note: Wide-Band Short Backfire Antenna

The short backfire antenna (SBA) has been widely used for mobile satellite communications, tracking, telemetry, and wireless local-area network applications due to its compact structure and excellent radiation characteristics. The SBA consists of a pair of reflectors and a circular rim and, is excited by an H-shaped slot which has been cut on a rectangular patch. The H-shaped slot is centre-fed at one side of the slot by a cylindrical wire probe that has been extended from the inner conductor of a coaxial line...