Circularly polarized broadband high-efficiency active integrated antenna

• Autores: S. Gao, Y. Qin, A. Sambell
• Localización: Microwave and optical technology letters, ISSN 0895-2477, Vol. 48, Nº. 11, 2006, págs. 2145-2148
• Idioma: inglés
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• Resumen

  • This letter presents a circularly polarized (CP) broadband high-efficiency active integrated antenna, where the broadband CP antenna is integrated directly with a broadband high-efficiency class-E power amplifier (PA). To achieve CP operation, a series feed using an L-shaped microstrip feed line below the ground plane is used to provide a 90° phase shift between crossed slots. The antenna serves both functions of a broadband CP radiator and a broadband harmonics-termination load network for the class-E PA. Measures results demonstrate both broadband CP radiation and high efficiency.