To enhance the performance, various methods have been applied to design the antenna. Still the scope remains unchanged in antenna research. Antenna has a prime role in wireless communication. In recent years, researchers have focused on improvement of the UWB antennas. UWB has attractive merits compact size, low cost, resistant to severe multipath and jamming, ease of fabrication, and good omni...

In this paper, a new reconfigurable frequency microstrip antenna with an ability of two rejecting intruder frequency WLAN and WiMAX bands for UWB applications is presented. In this antenna, a defect ground structure (DGS) and a U-shaped slot which is located on the ground plane have been used to improve bandwidth. Antenna impedance matching has been achieved through creating two symmetric incis...

In this paper, a compact band-notched UWB planar antenna with Transmission-Line-fed is presented and I’m using a new technique by etching a narrowband resonance H-shape slot in the ground plane of the antenna. This antenna is capable reducing the interference at the WLAN bands by eliminating the 4.85–6.17 GHz band. The proposed antenna has compact size of 16 × 22 mm2 including the ground plane ...

A frequency agile triple band microstrip antenna using defected ground structure for WLAN/WiMAX application is presented, in which frequency agility is electronically achieved by changing the bias voltage of varactor diode. A defected ground structure rectangular patch with dual inverted L-shaped fed with a cross shaped strip line is used to achieve multiple bands. Simulated results are validat...

<span>A coplanar waveguide</span><em></em><span>fed ultra-wideband antenna with extended transmission band to WLAN frequency is investigated. The proposed consists of a modified </span><span>semi-</span><span>circular patch and staircase ground plane. prototype fabricated on low cost FR4 substrate dielectric constant 4.4</span><span...

In this letter, a design of Compact Ultra-Wideband (UWB) bandpass filter with a switchable notch band for WLAN (5.3-5.9GHz) interference rejection is proposed. As 5.3-5.9GHz wireless local area network (WLAN) is existed in UWB spectrum range (3.1 -10.6GHz) and may interfere with UWB system operation. The UWB bandpass filter is implemented using a basic multiple mode resonator (MMR) structure fe...

This paper presents a novel CPW fed patch antenna supporting a wide band from 2.7 GHz – 6.5 GHz. The antenna is compact with size 32 x 30 x 1.6mm, built over FR4-epoxy substrate (εr=4.4). Bandwidth enhancement has been achieved by using the concept of modified ground structure (MGS). For this purpose structural design has been optimized by parametric simulations in CST MWS. The proposed antenna...