A Low-Profile Wideband Antenna for WWAN/LTE Applications

Abstract

In this paper, a low-profile antenna is presented for wideband communication applications. The presented design consists of an I-shaped driven strip and a rectangular ground strip with an open slot in the middle and a steeped lower portion. The measured results demonstrate that the achieved operating band of the proposed antenna has the potential to cover Globalstar satellite phones (GSSP) (1.61–1.63 GHz, uplink), advanced wireless systems (1.71–1.76 GHz, 2.11–2.17 GHz), DCS (1710–1880 MHz), GSM (1800MHz), DCP (1.88–1.90 GHz), DCS-1900/PCS/PHS (1850–1990MHz), WCDMA/IMT-2000 (1920–2170MHz), UMTS (1920–2170 MHz) and long-term evolution (LTE) bands (FDD LTE bands 1–4, 9–10, 15–16, 23–25, 33–37, 39). The designed antenna possessed a very small size of 0.35λ0 × 0.027λ0 at the lowest frequency (S11 ≤ −10dB), achieved good gains and exhibited stable radiation patterns, which makes it suitable for handheld communication devices.

Antennas for Licensed Shared Access in 5G Communications with LTE Mid- and High-Band Coverage

“…Several antennas have been proposed with multiband or wideband operation for wireless wide-area network (WWAN)/LTE hand-held devices to cover the frequency range from 1710 to 2690 MHz [ 14 , 15 , 16 , 17 , 18 ]. The antenna presented in [ 19 ] covers a wide frequency band from 1585 to 2195 MHz. However, this antenna covers only a part of the LTE mid band, and the performance of the antenna has not been verified after integrating the antenna into the substrate of a mobile phone.…”

Design and Characterization of Compact Broadband Antenna and Its MIMO Configuration for 28 GHz 5G Applications

“…The four microstrip fed antennas operate over 4G band, and the 5th one operates at a mm-wave band of 27.5-28.7 GHz. A low-profile antenna for wideband communication is also proposed in the literature that works on multiple WAN and LTE applications [14]. Furthermore, a compact and straightforward UWB antenna is proposed for wireless applications, where the antenna has simple design geometry and can operate on 3-10.5 GHz frequency spectrum [15].…”

Planarized quasi‐self‐complementary antenna design with ground‐cooperative radiating for mobile terminal applications

“…Until recently, various types of antennas have been used for mobile terminal applications including monopole antennas, [1][2][3][4] inverted-F antennas (IFAs), [5][6][7] slot antennas, [8][9][10][11][12] coupled-fed antennas, [13][14][15] lumpedelement loaded antennas, [16][17][18][19] reconfigurable antennas 20,21 and metamaterial antennas. [22][23][24] To fulfill the desired band coverage in a limited built-in volume, different strategies have been explored.…”

“…As a result, the antennas may suffer from complex structure, high profile, and deteriorated radiation characteristics. To alleviate this problem, the antenna in Reference [11] uses a driven strip and an open slot to form a planar antenna structure, which occupies a small footprint. However, it could not offer sufficient operating bands for long‐term evolution (LTE)/wireless wide‐area network (WWAN), which may limit its application in emerging mobile communications.…”