Abstract
A novel planar compact wideband antenna with coplanar waveguide (CPW) feeding configuration is presented in this paper. The proposed antenna is fed and coupled by the CPW feeding line at the same time. Therefore, two distinct excited modes are realized. Besides, detail investigation is presented as well to demonstrate the properties of the proposed antenna. Eventually, the prototype of the proposed antenna with optimal design is fabricated and tested. The proposed antenna, with a fairly compact size of 24 mm × 18 mm × 1 mm, has a measured 10 dB impedance bandwidth spanning from 3.05 GHz to 6 GHz, about 65.2%. Moreover, stable radiation patterns over the operating band are obtained. Furthermore, time-domain characteristics of the proposed antenna are also investigated.
Highlights
The need of high data rates wireless communication becomes more and more urgent, and various solutions have been brought forward
Wideband antenna techniques have been paid the most attention for many advantages, such as higher data rates, immunity to multipath cancellation, increased communications operational security, and low interference to legacy systems [1]
The wideband antenna techniques will play an important role in the short-range wireless communication systems
Summary
The need of high data rates wireless communication becomes more and more urgent, and various solutions have been brought forward. In the design of one planar wideband antenna, the shape of the antenna patch, the ground plane, and the feeding structure are of great importance. Different methods such as the truncated slot on the antenna patch or on the ground plane have been proposed for increasing the frequency range and improving the radiation pattern characteristics [2,3,4,5]. Many planar wideband antennas presented in [6,7,8] possess compact antenna size As another important transmission property, the time-domain characteristic of wideband antennas is investigated rarely. Measured results of the impedance bandwidth, the radiation patterns, and the simulated timedomain characteristics are given and discussed
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