Introduction The microstrip patch antennas are widely used in modern communication system due to low profile, low weight, low cost However, the antennas suffered from narrow bandwidth and low gain.[6 The major need for modern communication devices is to operate at wider band such as to support high speed internet, multimedia communication and similarly many more broadband services, this is achi...

A proposed sensor for landmines detection consists of two parallel microstrip antennas placed on the same ground plane and with defected ground structure between them has been investigated. The microstrip patch array with defected ground structure has the advantage of a low mutual coupling compared with the classic one. The Finite-Difference Time-Domain (FDTD) is used to simulate the sensor for...

In this paper, compact notch loaded microstrip antenna is analyzed using Zeland IE3D simulator and circuit theory concept. Analysis on varying thickness, dielectric constant, length and width of the notch has been reported. The bandwidth obtained by the proposed antenna is about 41.8%. Key WordsWide band, Microstrip Patch Antenna, Return Loss, Dielectric Substrate.

This paper describes the enhancement of rectangular patch for GSM band of frequency 5.3 GHz. First we have designed a rectangular microstrip patch antenna .After that measurement results in terms of S11 and radiation pattern are given.Microstrip design equation are introduced and validated by simulated and experimental results. Feed point on the patch that gives a good match of 50 ohm. A H –slo...

This paper presents the effect on resonant frequency (fr) of equilateral triangular patch due to cover and space dielectric. It is observed that as the superstrate dielectric constant and its thickness increases, the resonant frequency decreases. For space dielectric, as the air gap between patch and space dielectric increases the resonant frequency increases with incremental change in fr < 0.4...

By loading properly arranged slots in an equilateraltriangular microstrip patch, a dual-frequency and broadband operations of a single-feed triangular microstrip antenna are presented. Details of the proposed dualfrequency and broadband designs are described and simulated results of nearand far-field parameters are presented and discussed.

In this paper, the design of 4x4 smart antenna array antenna along with the butler matrix network which can be used for beamforming (pointing an antenna array). Unlike the conventional schemes where an array of microstrip patch antennas are used, the radiation becomes omnidirectional and therefore the power losses are more. In the proposed design, the designed antenna is operating at the freque...

This paper describes the design and simulation of the new Ɛ negative metamaterial unit cell structure and then the unit cells are combined to form 3D array which use as metamaterial cover with a single microstrip patch antenna. The new Ɛ negative metamaterial is based on the ELC resonator structure, which is used for obtaining the negative value of permittivity and positive value of permeabilit...

Abstract: A new nondegenerate dual-mode microstrip patch filter structure is introduced. The proposed filter is based on a square microstrip patch with four slots etched in symmetrical form. Besides its simple structure, the filter has the advantages of small size and low loss. The full-wave IE3D package is used to analyse the proposed structure. Design curves that relate the mode resonance fre...

The broadband microstrip antenna is realized by cutting a slot at an appropriate position inside the slot. The slot introduces a mode near the fundamental resonance frequency of the patch and realizes broadband response. The broadband patch antenna is also realized by using the proximity feeding technique. Using substrate of thickness greater than 0.080, the bandwidth of slot cut patch antenna...