Microstrip antennas are low in profile and light in weight and they are now developed for many applications. The main difficulty of the microstrip antenna is its narrow bandwidth. Several modern applications like satellite communications, remote sensing and multi-function radar systems will find it useful if there is a dual band antenna operating from a single aperture. Some applications requir...

Asymmetric-circular shaped slotted microstrip patch antennas with slits are proposed for circularly polarized(CP) radiation and radio frequency identification reader applications. A single-feed configuration based asymmetric-circular shaped slotted square microstrip patches are adopted to realize the compact circularly polarized microstrip antenna. The CP radiation can be achieved by slightly a...

A novel dual-polarized stacked antenna array is designed and built for broadcasting satellite orbital positions. It is working in the 12.43-12.53 GHz band (space-to-Earth). The patches in the bottom layer are fed diagonally by a microstrip line. The upper layer is stacked above the bottom one to increase the operating bandwidth. The design parameters are simulated and optimized using IE3D (Zela...

In this paper, a new compact multiband patch microstrip antenna design is presented as a candidate for use in modern multi-functions communication systems. The proposed antenna design is fractally generated using Koch fractal curve geometry applied to the conventional square microstrip patch antenna. Antenna structures resulting from the successive iterations in the proposed fractal generation ...

Recent developments in wireless communication systems in indoor environments require high data rates and high transmission qualities especially for multimedia applications in wireless local area network (WLAN) systems. The support of high data rate multiple-input multiple-output (MIMO) spatial-multiplexing communication in orthogonal frequencydivision multiplexing WLAN systems conforming to IEE...

In this paper, a novel multiple slot microstrip patch antenna with enhanced bandwidth is presented. The design adopts contemporary techniques namely; probe feeding, inverted patch structure and multiple slotted patch. The composite effect of integrating these techniques and by introducing the novel multiple shaped patch, offer a low profile, wide bandwidth, high gain and compact antenna element...

In this paper a microstrip transmission line fed compact monopole antenna for the wide-band (2. 5 GHz 11 GHz) communication system is designed and its performance is verified. In particular, we have simulated four types of wideband monopole antennas: rectangular, modified rectangular, circular and modified circular disk monopole antennas. Simple rectangular microstrip lines are used for feeding...