A novel configuration of a printed monopole antenna with a very compact size for satisfying WLAN operations at the 5.2/5.8 GHz and also for X-band operations at the 10 GHz has been proposed. The antenna includes a simple square-shaped patch as the radiator, the rotated U-shaped conductor back plane element with embedded strip on it, and the partial rectangular ground surface. By using the rotat...

In this paper, a closed square ring resonator loaded 2-port Multi Input Output (MIMO) is proposed for dual-band applications in the S and C band. The presented antenna model designed by loading it FR-4 substrate with feedline of 50Ω SRR enhancement isolation radiation pattern. Ansoft HFSS used to obtain simulated parameters frequency ranges 2.2-2.5 6-6.3GHz. Measurements confirm characteristics...

A printed quadruple band-notched ultra-wideband (UWB) antenna characteristic is presented. The designed UWB has a size of 32 mm × 30 1.6 and covers an impedance bandwidth off 2.9–14.5 GHz for the entire frequency band. band maintains voltage standing wave ratio (VSWR) <2, except at WiMAX (3.1–3.6 GHz), WLAN (4.92–6.12 downlink X-band satellite communication systems (7.5–8.4 (10.2–11 GHz). By...

A new compact printed tri-band antenna for WLAN/WiMAX applications is presented. The proposed antenna consists of three inverted L-shaped strips whose geometry looks like a “bent fork”. These strips are attached to the feed line through a horizontal strip. By optimizing the geometries of the inverted L-shaped strips, distinct resonant points can be effectively created for different frequency ba...

In this paper, we propose a novel microstrip antenna for operating over a three frequency bands, covering the 2.4/5.2/5.8 GHz WLAN and 2.5/3.5/5.5GHz WiMAX bands. The proposed antenna occupies an area of 30 mm  40mm, when printed on FR4 substrate (εr=4.4, h=0.8mm). The antenna comprises of a triangular patch section, L-shaped parasitic elements on the edges of triangular patch and a 50Ω micros...

In this paper a dual-band bandpass filter, using stub loaded ring resonator and etched nested C-shape defected ground structure (DGS), is reported. The operating frequencies of the bandpass filter conform to the Bluetooth (2.4GHz–2.484 GHz) and WLAN (5.15 GHz–5.35 GHz) systems. Due to its applications in WLAN and Bluetooth systems, the filter will be subjected to high EM radiation from the ante...

Ultrawideband (UWB) antennas, as core devices in high-speed wireless communication, are widely applied to mobile handsets, wireless sensor networks, and Internet of Things (IoT). A compact printed monopole antenna for UWB applications with triple band-notched characteristics is proposed in this paper. The antenna has a very compact size of 10 x 16 mm2 and is composed of a square slotted radiati...

Using composite right-left handed (CRLH) transmission line concept, a novel miniaturized dual notch band filter (DNBF) is proposed. The suggested DNBF consists of an interdigital transmission line (ITL), split ring resonators (SRRs) and complementary split ring resonators (CSRRs). Since the resonance frequency of the SRRs and CSRRs are quite independent of each other, the dual notch bands of th...

The traffic load of Wireless local area networks (WLANs) is often distributed unevenly among access points. In addition, interference from collocated wireless devices operating in the same unlicensed frequency band may cause WLANs to become unstable, leading to temporarily failures of access points. This paper addresses how to dynamically balance the load and how to quickly respond to instabili...

In this article, an UWB (Ultra-wide Band) compact monopole antenna with triple band-notched characteristics is presented. The proposed structure designed on the FR-4 substrate εr=4.3, tan δ = 0.025. consists of half-hexagon rectangular and square resonant spirals structures for exclusion frequency bands WiMAX (3.25-3.85GHz), WLAN(5.15-5.85GHz) Fixed/Mobile Satellite Communication (7.55-7.75GHz)...