In this paper, a simple planar multiband antenna design for wireless handsets is introduced. The proposed antenna can support four broad frequency bands, covering LTE/WWAN/GNSS/WiMAX/WLAN and several bands that are suggested for 5G systems. The proposed antenna design consists of a folded driven monopole strip, and a parasitic ground connected to the main ground with several etched slots on the ground plane. The parasitic ground in conjunction with the driven monopole slot helps to cover the lower band, including LTE700 and GSM bands, while the slots at the parasitic ground help to fully cover and tune other desired bands. The antenna is printed on a low-cost ultra-thin FR-4 substrate with a compact size of 135 mm \(\times\) 60 mm \(\times\) 0.5 mm, suitable for the state-of-the-art wireless handsets, such as smart-phones. The design procedure and measurement results of the antenna have been presented and discussed.

本文介绍了一种用于无线手机的简单平面多频带天线设计。拟议的天线可以支持四个宽频带，涵盖LTE / WWAN / GNSS / WiMAX / WLAN以及为5G系统建议的几个频带。拟议的天线设计包括一个折叠的驱动单极带和一个寄生接地，该寄生接地连接到主接地，并在接地面上有多个蚀刻槽。寄生接地与驱动单极缝隙一起有助于覆盖较低频段，包括LTE700和GSM频段，而寄生接地处的缝隙则有助于完全覆盖和调谐其他所需频段。天线被印刷在低成本的超薄FR-4基板上，紧凑尺寸为135毫米（倍） 60毫米（倍）0.5毫米，适用于最新的无线手机，例如智能手机。介绍并讨论了天线的设计过程和测量结果。