Antenna for 2G/3G/LTE

[Admin 2425]

In recent years, dual-polarized antenna has become one of the favourite choices of antenna designers due to its attractive features, such as doubled capacity of communication systems by frequency reuse, reduced multipath fading of received signals by polarization diversity, and improved transmit-receive isolation. 

 The prototype antenna can achieve a bandwidth of 25.7% (0.78 GHz–1.01 GHz) with a stable gain of 7.8 ± 0.7dBi for the lower band, and a bandwidth of 45.7% (1.69 GHz–2.69 GHz) with a gain of 9.5±1.1dBi for the upper band. Input isolation exceeding 30 dB has been obtained in the wide bandwidth. Thus, it can be potentially used as a base station antenna for 2G/3G/LTE networks.

Basically, the proposed antenna consists of two pairs of double-layer U-shaped electric dipoles with apertures, two pairs of shorted walls, a pair of biorthogonal dual-layer -shaped feeding structures and a horned reflector. The dimensions of the antenna are 206×166×88mm3. Besides, the thickness of the copper patches is selected for 0.3 mm after taking the versatility and cost into consideration.

 

   ,,, according to ...Hindawi Publishing Corporation

International Journal of Antennas and Propagation

Volume 2014, Article ID 480268, 10 pages