In this paper, novel compact broadband dual frequency microstrip antennas are presented and broad-band impedance matching is proposed as a method for improve the matching level of antennas. The first proposed design consists of a rectangular microstrip antenna with a pair of parallel slots loaded close to the radiating edge of the patch and three meandering narrow slots embedded in the antenna ...

International Journals [1]. " Compact wideband antenna for 2.4 GHz WLAN applications " , M. [3]. " Microstrip-fed Dual band Folded Dipole Antenna for DCS/PCS/2.4GHz WLAN Applications "

A multi-functional stacked patch antenna is introduced for possible wireless power beaming and data telemetry application. The proposed antenna operates at 5.8 GHz with 10 dBi gain, and 18% bandwidth. At a lower frequency at around 2.45 GHz the antenna operates as a planar inverted-F antenna (PIFA) with 4 dBi gain and 3.2% bandwidth. Switching between the two regimes of operation can be achieve...

This paper introduced a new low cost, compact and robust microstrip antenna based on metamaterial split ring resonator property to replace the existed antenna by small size and multiband Frequency antenna. The proposed antenna is designed with multi rectangular patches and simulated for different frequency. By using the metamaterial property, the bandwidth of the antenna has been improved. The ...

A theoretical analysis of a gap-coupled stacked annular ring microstrip antenna with superstrate is performed in order to obtain wider bandwidth operation. The effects of air gap, superstrate thickness and feeding point location on the antenna performance are analyzed in TM11 mode using equivalent circuit concept. It is noted that the proposed antenna is very sensitive to the feeding point loca...

In this paper Electromagnetic Band Gap structure with microstrip antenna has been proposed. Many small and compact periodic EBGs have been investigated to design the antenna. Simulation is done on the HFSS software tool. The antenna is designed on the 21x31mm FR4 substrate with the dielectric constant of 4.4. The designed antenna is designed to resonate at 8GHz frequency. The designed antenna i...

A dual-band microstrip antenna based on split-ring elements is introduced for WLAN (2.4/5.2 GHz) applications. The proposed split-ring antenna (SRA) has a compact novel design which provides about 2% impedance-bandwidth without a need for additional matching network. Analysis and design of the proposed microstrip antenna is carried out by means of full-wave simulators based on the finite-elemen...

A stacked type stair-case patch antenna with dielectric substrate (εr= 2.33) has been conceived and is theoretically demonstrated. Unlike conventional microstrip antenna it shows remarkable improvement in bandwidth (around 20%) as well as gain (around 10.5 dBi). The proposed structure is designed with two identical stair-case patches. Thorough investigations of the proposed antenna along with t...

AbstractA single feed compact microstrip antenna is proposed in this paper. Two L slits are introduced at right side of the patch. For the proposed antenna resonant frequencies are obtained at 3.48 GHz, 4.34 GHz and 5.65 GHz with bandwidth of 19 MHz, return loss –20.2 dB, 42.6 MHz, return loss -30.5 dB and bandwidth of 39.2 MHz, return loss -20.2 dB respectively. The size of the antenna has bee...