Wideband Square Loop Antenna with Circular Sectors for Digital TV

Wideband Stacked Square Microstrip Antenna with Slits

Compact Microstrip-Fed Square Loop Antenna for DTV Applications

A design method for a compact square loop antenna fed by a microstrip (MS) line for indoor digital television (DTV) applications is proposed. The proposed antenna consists of a square loop, circular sectors, and an MS line. The square loop combined with circular sectors is printed on one side of a substrate, and a 75 ohm MS line is printed on the other side. The circular sectors are used as a w...

Wideband Stacked Square Microstrip Antenna with Shorting Plates

The impedance bandwidth of a probe-fed microstrip antenna (MSA) is inherently narrow. Therefore, many approaches to increase the bandwidth such as using additional microstrip resonators [1], stacking parasitic patches above a fed patch (stacked MSA) [2] and embedding a U-shaped slot in the radiating patch [3], etc. have been proposed. It is desirable for wideband antennas that the frequency cha...

Dual-Circular Polarized Square Micro strip Antenna

Modified design of obtaining dual-circular polarization radiation of a single-feed square microstrip antenna are proposed and experimentally studied. The proposed single-feed dual circular polarized design is achieved by inserting four Tshaped slits at the patch edges of a square microstrip antenna. Details of the design considerations of the proposed antenna are described, and experimental res...

Multi-resonance Square Monopole Antenna for Ultra-wideband Applications

In this paper, a modified square monopole antenna with multi-resonance performance, for UWB applications is proposed. The proposed antenna consists of a square radiating patch with a pair of T-shaped slots and a ground plane with a pair of rectangular sleeve and a T-shaped resonator which provides a wide usable fractional bandwidth of more than 125% (3.05–13.57 GHz). By optimizing dimension of ...