In this paper, we present a novel planar rectangular microstrip-fed patch antenna for 2.4 GHz and 5.5 GHz. This configuration radiates at 2.43GHZ (2.27‐2.55 GHz) and 5.52 GHz (5.14‐5.90 GHz) for 2.4, 5.2 and 5.8GHz WLAN bands adopting IEEE 802.11b, IEEE 802.11e and IEEE 802.11a WLAN standards, respectively. The proposed antenna is designed and simulated using CST Microwave Studio 2012 electroma...

A defected structure etched in the metallic ground plane effectively disturbs the shield current distribution in the ground plane and thus, DGS potentially obtains wide reject-band, which meet the emerging application challenges. Microstrip patch antenna arrays are very popular for today’s wireless communication system. In this paper a new scheme is proposed to reduce the mutual coupling betwee...

A compact balanced UWB bandpass filter (BPF) is proposed in this paper, which is based on the half-mode substrate integrated waveguide (HMSIW) and the differential defected ground structure (D-DGS). Using the HMSIW, the filter can achieve compact size, wide passband and good compatibility. Two D-DGS cells are employed to provide good suppression for the common-mode (CM) noise, while they have s...

in this article, the linear array (with 20 elements in the horizontal orientation) of microstrip antenna is examined with horizontal polarization. the set includes three microstrip substrates. there is a power network in two lower substrates and microstrip patches in the upper substrate. excitation of patches has been done as coupled through the power network in two lower substrates. using the ...

In this paper, the design of universal compressive sensing filter based on normal filters including the lowpass, highpass, bandpass, and bandstop filters with different cutoff frequencies (or bandwidth) has been developed to enable signal acquisition with sub-Nyquist sampling. Moreover, to control flexibly the size and the coherence of the compressive sensing filter, as an example, the microstr...

Repeaters have been widely used to improve communication quality and extend the coverage areas of wireless systems. However, mutual coupling between Tx Rx antennas significantly deteriorates performance repeater This work presents a high-isolation antenna operating in frequency range 3.6–3.7 GHz 5G system. Perpendicularly arranged microstrip patch are because this arrangement can lead greater i...

This paper introduces the design of a filtenna for cognitive radio systems. Four varactor diodes, which are inserted in bandpass filter, used to achieve desired tunability. The proposed filter is integrated with wideband monopole antenna. achieved by using two coupled defected ground structure (DGS) resonators and microstrip lines ended stubs. antenna designed operate frequency band from 1.3 GH...

In this letter, a compact wideband bandpass filter (BPF) with wide stopband is proposed based on the substrate integrated defected ground structure (SIDGS) and folded stepped-impedance resonator (FSIR). Such SIDGS can not only allocate specific resonance size but also introduce different harmonic positions compared traditional microstrip line resonator. Meanwhile, due to discrepant of FSIR, res...

In this paper, two new line-fed loaded planar antennas are proposed for ultra-wideband applications. The first antenna is a circular patch with a circular ring as a Defected Ground Structure (DGS). A 50 Ohm microstrip line passes through the antenna which is symmetrical between the feed and the load. The impedance bandwidth of the first antenna with S11 < −10 dB is more than 10 GHz, from 3 GHz ...