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H-slot truncated patch is designed to excite a circularly polarized short backfire antenna (SBA). The novel design of SBA contain H-shaped slot with truncated patch fed by single feed probe. It also consists of parasitic circular ring at the height of sub-reflector. It is demonstrated that H-shaped slot truncated patch can achieve a voltage standing wave ratio (VSWR) bandwidth of 4.0% (VSWR <;...
This paper deals with broadband circularly polarized patch antennas using an Artificial Ground (AG) structure with rectangular unit cells as a reflector. The AG structure has no band gap unlike the mushroom structures for electromagnetic band gap (EBG) and changes the reflection phase in accordance with the polarization state of the incident wave. By properly combining the transmitted wave from the...
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