Abstract
A four-layer odd function symmetrical dual-polarization coplanar waveguide- (CPW-) fed equilateral right triangle slot printed broadband directional antenna for wireless lab measurement applications is presented. The proposed antenna consists of two stacked perpendicular odd function symmetrical equilateral right triangle slot antenna structures with two stacked reflector ground planes. It is miniaturized, simple, and easy to be fabricated. The measured results demonstrate that the proposed antenna can achieve wide impedance bandwidth that is almost 520% for |S11| and |S22|; VSWR ≦ 3 which has implemented the operating band from 1.37 to 7.12 GHz for Global Positioning System (GPS, 1.575 GHz), Wireless Local Area Networks band (2.4 GHz and 5.8 GHz), 6 GHz unlicensed spectrum (5.925 GHz∼7.125 GHz), Long Term Evolution Upper Band (LTE, 1710–2690 MHz), and sub-6 5 G band (3.5 GHz and 4.7 GHz) applications. The measured in-band isolation performance between the two input ports |S12| ≦ −17 dB is significantly achieved, and meanwhile, the antenna radiation pattern, peak gain, and efficiency of the proposed antenna are measured as well. In the end, the radiation pattern data are compared and analyzed with simulation results.
Highlights
With the explosive development of the mobile and wireless communication industry in recent years, the wireless systems supporting wider bandwidth have become more and more popular and challenging. e demand to enhance the information accessibility with higher user experienced data throughput, low latency, and wideband utility has become more challenging in mobile and wireless technology, especially for highly integrated mobile and wireless system performance measurements
To fulfill the demand and the convenience of system measurement, wideband and multiband antennas are widely utilized in mobile and wireless communication systems to cover multiple communication bands, such as mobile wireless communication system (2 G/ 3 G/4 G) bands operating at 698–960 MHz/1710–2690 MHz, wireless local area network (WLAN) bands operating at 2.4–2.484 GHz/5.15–5.825 GHz, 6 GHz unlicensed spectrum for the European markets between 5.925 GHz and 6.425 GHz and for the US markets between 5.925 GHz and 7.125 GHz, and sub-6 GHz 5 G bands operating at 3.5 GHz/ 4.7 GHz
To summarize all of the reference papers as above, we propose a new design for high gain, high isolation, and broadband directional antenna, which is comprised of the equilateral right triangle slot with odd function symmetrical pair of stubs; there are four stacked layers composed of two antennae and two reflectors are shown. e horizontal and vertical polarization are determined by the direction of the coplanar waveguide- (CPW-)fed line, and the antenna is perpendicular to the top and bottom
Summary
With the explosive development of the mobile and wireless communication industry in recent years, the wireless systems supporting wider bandwidth have become more and more popular and challenging. e demand to enhance the information accessibility with higher user experienced data throughput, low latency, and wideband utility has become more challenging in mobile and wireless technology, especially for highly integrated mobile and wireless system performance measurements. A few papers [2, 3] have been published for getting better isolation in some of the dual-polarization antenna applications, but the two proposed antennas of the impedance bandwidth are still not wide enough to cover modern mobile and wireless communication systems. In paper [8], a dual-polarization coplanar waveguide(CPW-) fed bow-tie slot antenna has been demonstrated, the antenna structure is simple, and the specifications of wide bandwidth and high isolation can be accomplished . E final approach is for directional antenna with dualpolarization design consideration and application. In these literatures, the antennae have the features of directional, broadband, and dual-polarization which are presented. Details of the specification of the proposed antenna designs and the experimental results of constructed prototypes are presented and discussed
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
