针对超薄多频带手机的需要，提出一款新型印刷缝隙型手机天线。天线印刷在 0.8 mm厚 FR-4电路板上，地面开有 2个缝隙，其中 1个为矩形，另外 1个为矩形与圆形组合形式。馈电结构采用 50 Ω微带线与一圆形贴片、一矩形带线组合构成倒 L状。馈电线的弯折部分在地上的投影落于缝隙的内部，天线在电路板上占用的区域仅限于缝隙内部，保持了天线的小型化。此结构缝隙天线能够达到宽带匹配，测试的 -6 dB带宽为 0.695~0.805 GHz，1.5~3.2GHz，4 ~15 GHz，能够覆盖 LTE700,DCS1800,PCS1900,UMTS,LTE2300,LTE2500,全球定位系统 (GPS),无线局域网 (WLAN)以及超宽带通信 (UWB)的高频段。

A novel printed slot antenna is presented to meet the requirement of low profile and multiband for a mobile phone. The antenna is printed on a 0.8 mm thick FR-4 substrate with two slots etched on the ground plane. One of the slots has a rectangular shape and the other has a hybrid shape composed of a rectangle and a circle. The antenna is fed by a 50 Ω microstrip connected to a circular patch and a rectangular strip, forming an inverted-L shape. The footprint of the folded portion of the feeding structure on the ground locates inside the slot region which results in a compact antenna size on the PCB board. The proposed antenna has a wideband impedance matching with measured -6 dB bandwidth of 0.695-0.805 GHz,1.5-3.2 GHz,and 4-15 GHz covering LTE700, DCS1800, PCS1900, UMTS, LTE2300, LTE2500, Global Positioning System(GPS), Wireless Local Area Network(WLAN), and Ultra-Wideband(UWB) upper band.