- Antenna Design and Analysis
- Microwave Engineering and Waveguides
- Antenna Design and Optimization
- Energy Harvesting in Wireless Networks
- Advanced Antenna and Metasurface Technologies
- Advanced MIMO Systems Optimization
- Millimeter-Wave Propagation and Modeling
- Wireless Body Area Networks
- Advanced Photonic Communication Systems
- Radio Frequency Integrated Circuit Design
- Photonic and Optical Devices
- Ultra-Wideband Communications Technology
- Semiconductor Lasers and Optical Devices
- Full-Duplex Wireless Communications
- Gyrotron and Vacuum Electronics Research
Abdelmalek Essaâdi University
2019-2024
National School of Architecture
2019
This paper presents a compact Multiple Input Output antenna with high isolation and low envelope correlation (ECC) for fifth-generation applications using spatial diversity technique. The proposed MIMO consists of two single antennas, each having size 13 × 12.8 mm 2 , symmetrically arranged next to other. antennas are simulated analyzed. To verify the results, prototype were fabricated measured. A good agreement between measurements simulations is obtained. covers 28 GHz band (27.5–28.35...
This paper presents a new design of compact dual-band Multiple Input Output (MIMO) antenna with high isolation for WLAN and X-band satellite applications. The proposed is realized using three slots: the first slot used on upper layer to create second resonance frequency at 5.3 GHz two symmetrical slots are etched bottom enhance impedance bandwidth operating bands. In order obtain low mutual coupling, elements have an orthogonal polarization. simulated results show that MIMO has (S21 ≤−22.5...
In this work, we propose a compact CoPlanar Waveguide (CPW) fed two-port multipleinput multiple-output (MIMO) antenna with high isolation for Ultra-Wideband (UWB) applications.The proposed consisting of two symmetrical radiators placed side-by-side on an FR-4 substrate size 0.48λ × 0.01λ mm 3 at 3.1 GHz (where λ = guided wavelength the lowest frequency operation).The between elements is more than 16.5 dB in entire UWB, which achieved by introducing ground plane vertical T-shaped...
In this paper, we design a compact MIMO antenna with high isolation. The covers 2.5/5.8 GHz frequency bands, which are allocated for Wi-MAX / WLAN applications. suggested consists of two identical F-shaped monopole elements, symmetrically positioned on the top side an FR-4 substrate. To increase isolation between radiating T-shaped junction is added acts as short stub-loaded resonator (SSLR). improve impedance matching, different forms engraved bottom. measured results show that proposed has...
In this study, a novel Switched Beam Antenna (SBA) system is proposed and experimentally validated for C-band applications.The made up of 4 × Butler matrix, whose outputs are connected to four square-looped radiator antenna elements.The originality the work depends on construction miniaturized beamforming network with minimal complexity, low loss, expense.Moreover, designing broad frequency range enables its use in variety applications.Miniaturization achieved by eliminating crossover...
This paper focuses on designing and manufacturing a compact microstrip diplexer, which operates at 3.5 GHz 5 for 5G Wi-Fi applications, respectively.Indeed, two bandpass filters are combined to create the proposed diplexer.For making compact, hairpin resonator is suggested developed into an E-shaped resonator.To attain central frequencies, short stub loading proposed.The were by coupling junction form final diplexer.The diplexer exhibits good isolation that better than 40 dB in whole...
Abstract The present paper sheds light on designing a new and high performance microstrip diplexer. latter is based octagonal meandrous resonators combined with the connected common port, without adding any transmission line junction, in order to get miniaturized structure. suggested compact resonator formed through combining lines coupled lines, which create bandpass filter. These filters operate at 3.5 GHz 5 make them suitable for 5G Wi-Fi applications. Accordingly, an approximated...
Microstrip patch antennas represent one family of compact that offer a conformal nature and the capability ready integration with communication system's printed circuitry. In this paper, 5.4 GHz circular polarization microstrip antenna is designed simulated. The selected dual-fed polarized antenna. consists miniaturization square 3dB hybrid coupler. array can excite both right-hand (RHCP) left-hand (LHCP) using coupler directly connected to get polarization. Circular obtained when two...
This paper presents a compact multiple input output (MIMO) antenna design with good isolation for ultra-wideband (UWB) applications. The proposed contains two identical monopoles that are placed parallel to each other and which fed by 50-ohm coplanar waveguide (CPW). MIMO is fabricated on low-cost flame resistant 4 (FR4) substrate an overall size of 36 × 1.6 mm3. designed has wideband impedance matching |S11| <-10 in the UWB frequency range from 3.1 14.9 GHz about 13.7 dB whole band....
A compact triple band antenna by using etching slots technique in the radiation element is presented this paper. The proposed designed to target three different frequencies: 7.5 GHz (military satellite communication), 9 (radar applications) and 28 (fifth generation applications). fabricated prototype of has overall dimensions 13x12.8x1.6 mm3. Measurements were carried out validate simulation results. impedance bandwidths are 259 MHz (7.435-7.695 MHz), 355 (8.86-9.221 MHz) 2.67 (26.79-29.433...
In this work, an F-shaped planar-monopole two antennas operating in Wi-MAX and WLAN standards with isolation is proposed. The system contains of symmetrical that are placed parallel on the top face FR-4 substrate. We added a T-shaped junction upper layer to connect F-monopoles each other ground plane order improve at band. On bottom side substrate, we etch rectangular open ended slots as well ring-shaped slot impedance bandwidth. MIMO antenna designed resonate 2.5 GHz, 5.8 GHz meet...
In this work, we present a substrate integrated waveguide (SIW) bandpass filter, based on the double-slit complementary split ring resonator (DS- CSRR), with compact size. By incorporating one unit cell of DS- CSRR upper side SIW cavity, proposed filter offers good performance.. The is centered at 8.3 GHz corresponding fractional bandwidth 18parcent. simulation results show that has high selectivity, insertion losses and return in passband are about 0.4dB 20dB respectively. process, two...
This paper presents analysis and design of a compact dual bandstop filter using an array square split ring resonators (SSRR). The SSRR are placed in the ground to cut off unwanted signals. results show that angular orientation inner offers possibility designing with small size simple structure.
<span lang="EN-US">A compact design of ultra-wideband (UWB) antenna with dual band-notched characteristics based on split-ring resonators (SRR) are investigated in this paper. The wider impedance bandwidth (from 2.73 to 11.34 GHz) is obtained by using two symmetrical slits the radiating patch and another slit partial ground plane. band-notch rejection at WLAN X-band downlink satellite communication system inserting a modified U-strip 5.5 GHz embedding pair rectangular SRRs both sides...
This paper presents a simple design of compact 4-port multiple-input multiple-output (MIMO) microstrip antenna using polarization diversity technique. The proposed structure consists four monopole elements operating in the fifth generation n79 band (4800–5000 MHz). To achieve good performance with more design, identical are arranged orthogonally to each other. is fabricated Rogers RT6010 substrate size 28 × 28mm2. measured results manufactured terms S-parameters and radiation pattern...
This article presents a compact dual-band patch antenna designed for wireless communication systems. The proposed design operates efficiently at both 2.45 GHz and 5.76 achieving high performance despite its size. Defected Microstrip Structure (DMS) is used to create the desired frequency bands improve impedance matching respective required frequencies, respectively. manufactured on low-cost FR-4 substrate, with dimension of 27 mm × 1.6 mm. simulated radiation efficiencies and5.76 are 95%...
Abstract This paper presents the design of a compact broadband coupler specifically dedicated to 5G applications. The innovative approach proposed skillfully merges two distinct methods: use stepped impedance structures and meanders. aim is not only miniaturize structure extend bandwidth, but also maintain high performance, particularly within 3.5 GHz core frequency band. effectiveness this reflected in remarkable reduction size, down by 59% compared with conventional designs. In addition,...
This paper presents a new design of super compact Ultra wideband (UWB) band-pass filter (BPF) with rejection X-band satellite applications. For covering the UWB bandpass, proposed is realized using hybrid technique which achieved by Microstrip-Coplanar waveguide-Microstrip transition. The basic structure consists modified microstrip in top layer and CPW bottom layer. Later, open-circuited stubs are embedded to implement in-band transmission zeros (TZ) so as circumvent interference. simulated...