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该文展示了一种应用于移动通信的新型的双端短路点平面倒F天线,该天线可实现多频且宽带工作。天线主要由主辐射带状天线、寄生天线和开槽地板构成。为了拓展在DCS/PCS/UMTS/LTE 2 300/2 500频段上的带宽,该天线采用了双短路点设计,该设计在1 707~2 815 MHz频段上实现多模工作。同时,由于充分利用寄生天线的高次谐振模,实现了对3 387~3 627 MHz的覆盖。经过加工测试,该天线在GSM/DCS/PCS/UMTS/LTE/802.11b/Wi-MAX频段上均展现了很好的阻抗匹配特性,并均能获得高于50%的辐射效率。
This paper presents a new type of double-ended short-circuited point-inverted F-antenna used in mobile communications that enables multi-frequency and broadband operation. The antenna is mainly composed of the main radiating strip antenna, parasitic antenna and slotted floor. In order to expand the bandwidth on the DCS / PCS / UMTS / LTE 2 300/2 500 band, the antenna uses a dual short-circuit point design that enables multimode operation in the 1 707-2 815 MHz band. At the same time, due to take full advantage of the high-order resonant mode parasitic antenna, to achieve the 3887 ~ 3267 MHz coverage. After processing and testing, the antenna exhibits good impedance matching characteristics in the GSM / DCS / PCS / UMTS / LTE / 802.11b / Wi-MAX bands and achieves more than 50% radiation efficiency.