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Computer Modelling of Compact 28/38 GHz dual-band antenna for Millimeter-Wave 5G Applications

Computer Modeling in Engineering & Sciences 2023年第12期137卷 2867-2879页

作者： Amit V.Patel Arpan Desai Issa Elfergani Hiren Mewada Chemseddine Zebiri Keyur Mahant Jonathan Rodriguez Raed Abd-Alhameed Department of Electronics and Communication Engineering Chandubhai S Patel Institute of Technology(CSPIT)Charotar University of Science and Technology(CHARUSAT)Changa388421India The Instituto de Telecomunica珲es Campus Universitário de SantiagoAveiro3810-193Portugal School of Engineering and Informatics University of BradfordBradfordBD71DPUK Electrical Engineering Department Prince Mohammad Bin Fahd UniversityAl Khobar31952Saudi Arabia Department of Electronics Laboratoire d’Electronique de Puissance et Commande Industrielle(LEPCI)University of Ferhat AbbasSétif19000Algeria

A four-element compact dual-band patch antenna having a common ground plane operating at 28/38 GHz is proposed formillimeter-wave communication systems in this ***-input-multiple-output(MIMO)antenna geometry consists of a slotted ellipse enclosed within a hollow circle which is orthogonally rotated with a connected partial ground at the *** overall size of the four elements MIMO antenna is 2.24λ×2.24λ(at 27.12GHz).The prototype of four-element MIMOresonator is designed and printed using Rogers RTDuroid 5880 withε_(r)=2.2 and loss tangent=0.0009 and having a thickness of 0.8 *** covers dual-band having a fractional bandwidth of 15.7%(27.12-31.34 GHz)and 4.2%(37.21-38.81 GHz)for millimeter-wave applications with a gain of more than 4 dBi at both *** proposed antenna analysis in terms ofMIMOdiversity parameters(Envelope Correlation Coefficient(ECC)and Diversity Gain(DG))is also carried *** experimental result in terms of reflection coefficient,radiation pattern,gain and MIMOdiversity parameter correlates very well with the simulated ones that show the potential of the proposed design for MIMO applications at millimeter-wave frequencies.

关键词： Connected ground diversity parameters dual-band antenna fifth generation(5G) mmwave multiple input multiple output(MIMO)

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Novel dual-band antenna for multi-mode GNSS applications

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Journal of Systems Engineering and Electronics 2015年第1期26卷 19-25页

作者： Hongmei Liu Shaojun Fang Zhongbao Wang School of Information Science and Technology Dalian Maritime University

A novel dual-band antenna is proposed for mitigating the multi-path interference in the global navigation satellite system（GNSS） applications. The radiation patches consist of a shortedannular-ring reduced-surface-wave（SAR-RSW） element and an inverted-shorted-annular-ring reduced-surface-wave（ISAR-RSW）element. One key feature of the design is the proximity-coupled probe feeds to increase impedance bandwidth. The other is the defected ground structure band rejection filters to suppress the interaction effect between the SAR-RSW and the ISAR-RSW elements. In addition, trans-directional couplers are used to obtain tight coupling. Measurement results indicate that the antenna has a larger than 10 d B return loss bandwidth and a less than 3 d B axial-ratio（AR） bandwidth in the range of（1.164 – 1.255） GHz and（1.552 – 1.610） GHz. The gain of the passive antenna in the whole operating band is more than 7 d Bi.

关键词： active antenna dual-band antenna multi-path interference

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Frequency-Diversified Space-Efficient Radiating Surface Using Convolved Electric and Magnetic Currents for Highly Dense Multiband antenna-Frontend Integration

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Electromagnetic Science 2024年第1期2卷 63-76页

作者： Amirhossein Askarian Pascal Burasa Ke Wu Department of Electrical Engineering Poly-Grames Research CenterPolytechnique MontrealQC H3T1J4Canada

We propose and investigate a methodology based on convolved electric and magnetic currents for the generation of multi-band responses over a space-shared radiating ***,a single wideband antenna operation principle based on inter-leaved dipole and slot modes is studied and analyzed using full-wave simulations followed by a qualitative time domain ***,a 2×2 dual-band radiating unit is conceived and developed by closely arranging single wideband *** this case,multimode resonances are generated in a lower frequency band by a proper convolving and coupling of the magnetic and electric currents realized in the gaps between the antennas and on the surface of the antennas,*** methodology can be deployed repeatedly to build up a self-scalable topology by reusing the electromagnetically(EM)connected radiating surfaces and gaps be-tween the radiating *** to the efficient reuse of the electromagnetic region for the development of multiband radiation,a high aperture-reuse efficiency is ***,as a proof of concept,a 2×4 dual-band array operating in Ku-and Ka-bands is devel-oped and fabricated by a linear arrangement of the two developed radiating *** measurement results show that the proposed antenna array provides impedance and gain bandwidths of 30%and 25.4%in the Ku-band and 10.65%and 8.52%in the Ka-band,respectively.

关键词： Aperture-shared array Aperture-reused efficiency antenna-frontend integration dual-band antenna Magneto-electric dipole antenna Multi-mode resonance Multi-band array Multi-functional antenna Wideband antenna array

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Design of a kind of wideband filtering antenna based on defected ground structure

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The Journal of China Universities of Posts and Telecommunications 2015年第6期22卷 66-71页

作者： Hao Honggang Zhou Li College of Electroning Engineering Chongqing University of Posts and Telecommunications

Given the flaws in traditional cascading design of the filtering antennas, a kind of filtering antenna based on the defected ground structure （DGS） is proposed. It adopts the method of co-design to integrate the filter and the antenna into one substrate, resulting in a miniaturized size of 34 mmx30 ram. In the design, the structure with dumbbell shape is etched on the ground of dual-band antenna, aiming for the low-pass property of the filtering antenna. The simulated results show that the filtering antenna＇s co-design can effectively enlarge the bandwidth of the pass-band and suppress the bandwidth of T-patch, whose pass-band can cover the bandwidths of wireless local area network （WLAN） 21~ GHz, wideband code division multiple access （WCDMA） 2.1 GHz, long term evolution （LTE） 2.3/2.5/2.6/2.8 GHz etc. In addition, the filtering antenna＇s physical module is fabricated and measured, whose test results are basically consistent with the ones of simulation. Moreover, the filtering antenna with liner polarization has a good radiation pattern of omni-direcfion, and can be applied to the terminals of wireless mobile system.

关键词： filtering antenna dual-band antenna DGS liner polarization

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