scholarly journals High Gain and High Efficient Stacked Antenna Array with Integrated Horn for 60 GHz Communication Systems

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Hamsakutty Vettikalladi ◽  
Waleed Tariq Sethi ◽  
Majeed A. Alkanhal
Keyword(s):  
Communication Systems ◽  
High Gain ◽  
Center Frequency ◽  
Impedance Bandwidth ◽  
Antenna Element ◽  
60 Ghz ◽  
Antenna Structure ◽  
High Efficient ◽  
Feed Network ◽  
Array Structure

In order to achieve wide bandwidth and high gain, we propose a stacked antenna structure having a microstrip aperture coupled feeding technique with a mounted Horn integrated on it. With optimized parameters, the single antenna element at a center frequency of 60 GHz, exhibits a wide impedance bandwidth of about 10.58% (58.9–65.25 GHz) with a gain and efficiency of 11.78 dB and 88%, respectively. For improving the gain, we designed a 2 × 2 and 4 × 4 arrays with a corporate feed network. The side lobe levels were minimized and the back radiations were reduced by making use of a reflector atλ/4distance from the corporate feed network. The2×2array structure resulted in improved gain of 15.3 dB with efficiency of 83%, while the4×4array structure provided further gain improvement of 18.07 dB with 68.3% efficiency. The proposed design is modelled in CST Microwave Studio. The results are verified using HFSS, which are found to be in good agreement.

scholarly journals A Novel High Gain Monopole Antenna Array for 60 GHz Millimeter-Wave Communications

2020 ◽  
Vol 10 (13) ◽  
pp. 4546
Author(s):  
Tarek S. Mneesy ◽  
Radwa K. Hamad ◽  
Amira I. Zaki ◽  
Wael A. E. Ali
Keyword(s):  
Antenna Array ◽  
Communication Systems ◽  
Ground Plane ◽  
High Gain ◽  
Monopole Antenna ◽  
Impedance Bandwidth ◽  
Single Element ◽  
60 Ghz ◽  
Defected Ground Structure ◽  
Element Array

This paper presented the design and implementation of a 60 GHz single element monopole antenna as well as a two-element array made of two 60 GHz monopole antennas. The proposed antenna array was used for 5G applications with radiation characteristics that conformed to the requirements of wireless communication systems. The proposed single element was designed and optimized to work at 60 GHz with a bandwidth of 6.6 GHz (57.2–63.8 GHz) and a maximum gain of 11.6 dB. The design was optimized by double T-shaped structures that were added in the rectangular slots, as well as two external stubs in order to achieve a highly directed radiation pattern. Moreover, ring and circular slots were made in the partial ground plane at an optimized distance as a defected ground structure (DGS) to improve the impedance bandwidth in the desired band. The two-element array was fed by a feed network, thus improving both the impedance bandwidth and gain. The single element and array were fabricated, and the measured and simulated results mimicked each other in both return loss and antenna gain.

scholarly journals Design of a miniaturized ultrawideband and low scattering antipodal vivaldi antenna array

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jia Liu ◽  
Chengxiang Xu ◽  
Hang Yu ◽  
Jianxun Su
Keyword(s):  
Normal Incidence ◽  
High Gain ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Antenna Element ◽  
Phase Cancellation ◽  
Dielectric Lens ◽  
Array Structure ◽  
Vivaldi Antenna ◽  
Good Agreement

AbstractThis paper presents a miniaturized ultra-wideband (UWB) antipodal Vivaldi antenna (AVA) array with low-scattering characteristics integrated a hybrid diffusive-absorptive metasurface. Periodic elliptical slots at the outer edges and a dielectric lens are utilized for antenna element to improve performances including miniaturized size, wide bandwidth, and high gain. The optimized element is fabricated and measured, the results demonstrate that the − 10 dB impedance bandwidth is 4.5–50 GHz with a ratio bandwidth (fH/fL) of 11.1:1, and the maximum gain at 35 GHz is 12.7 dBi, which are in good agreement with simulation. By loading an optimized Minkowski-shaped metasurface as the ground reflector, which combines the multielement phase cancellation (MEPC) and EM absorption technology, the 4 × 4 array realizes a low radar cross section (RCS) without the radiation performance degradation. Simulated and measured results show that the proposed low-scattering array has a 10-dB RCS reduction band ranging from 5 to 50 GHz at normal incidence for both polarizations. Furthermore, the array structure shows extremely low-observable capability, which is larger than 15 dB of the RCS reduction from 7.1 to 50 GHz with a ratio bandwidth of 7.0:1. The results verify the feasibility of improving the performance of antenna and the UWB low-scattering functionality.

scholarly journals A DR Loaded Substrate Integrated Waveguide Antenna for 60 GHz High Speed Wireless Communication Systems

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Nadeem Ashraf ◽  
Hamsakutty Vettikalladi ◽  
Majeed A. S. Alkanhal
Keyword(s):  
Antenna Array ◽  
Communication Systems ◽  
High Speed ◽  
Metal Layer ◽  
Simulation Software ◽  
Impedance Bandwidth ◽  
Antenna Element ◽  
Substrate Integrated Waveguide ◽  
60 Ghz ◽  
Single Antenna

The concept of substrate integrated waveguide (SIW) technology along with dielectric resonators (DR) is used to design antenna/array for 60 GHz communication systems. SIW is created in the substrate of RT/duroid 5880 having relative permittivityεr=2.23and loss tangenttan⁡δ=0.003. H-shaped longitudinal slot is engraved at the top metal layer of the substrate. Two pieces of the DR are placed on the slot without any air gap. The antenna structures are modeled using CST Microwave Studio and then the results are verified using another simulation software HFSS. Simulation results of the two designs are presented; first a single antenna element and then to enhance the gain of the system a broadside array of1×4is presented in the second design. For the single antenna element, the impedance bandwidth is 10.33% having a gain up to 5.5 dBi. Whereas in an array of1×4elements, the impedance bandwidth is found to be 10.70% with a gain up to 11.20 dBi. For the single antenna element and1×4antenna array, the simulated radiation efficiency is found to be 81% and 78%, respectively.

scholarly journals Millimeter Wave Antenna with Mounted Horn Integrated on FR4 for 60 GHz Gbps Communication Systems

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Waleed Tariq Sethi ◽  
Hamsakutty Vettikalladi ◽  
Majeed A. Alkanhal
Keyword(s):  
Millimeter Wave ◽  
Communication Systems ◽  
High Gain ◽  
Impedance Bandwidth ◽  
60 Ghz ◽  
Antenna Gain ◽  
Microstrip Patch ◽  
V Band ◽  
Wave Antenna ◽  
Millimeter Wave Antenna

A compact high gain and wideband millimeter wave (MMW) antenna for 60 GHz communication systems is presented. The proposed antenna consists of a multilayer structure with an aperture coupled microstrip patch and a surface mounted horn integrated on FR4 substrate. The proposed antenna contributes impedance bandwidth of 8.3% (57.4–62.4 GHz). The overall antenna gain and directivity are about 11.65 dBi and 12.51 dBi, which make it suitable for MMW applications and short-range communications. The proposed antenna occupies an area of 7.14 mm × 7.14 mm × 4 mm. The estimated efficiency is 82%. The proposed antenna finds application in V-band communication systems.

High gain antenna for n260- & n261-bands and augmentation in bandwidth for mm-wave range by patch current diversions

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Deepinder Singh Wadhwa ◽  
Praveen Kumar Malik ◽  
Jaspal Singh Khinda
Keyword(s):  
Loss Tangent ◽  
Communication Systems ◽  
Low Cost ◽  
Ground Plane ◽  
High Gain ◽  
Impedance Bandwidth ◽  
Antenna Structure ◽  
Content Type ◽  
High Loss ◽  
Wave Range

Purpose A compact low-cost antenna structure is proposed to augment the impedance-bandwidth in mm-wave range. Beside it, the paper also aimed to enhance high gain for n260 and n261-bands, suitable for futuristic communication systems. Design/methodology/approach Design consists of radiating patch and a partial ground plane with semi-circle arc for smooth flow of current. The lower corners of patch are gradually clipped away to make the patch nearly elliptical. Further, two tilted slots at an angle α = 15° are etched at the edges of the patch to augment bandwidth for mm-wave range. These slots divert the periphery current of semi elliptical patch towards center portion of antenna which ensures the participation in radiation of central portion of patch. The upper corners are also clipped away to limit the copper losses and smoothly flow of current. The proposed antenna is designed using HFSS and it is structured on inexpensive FR4 substrate of size 27.5 × 20 mm2. Findings It supports enormous −10 dB bandwidth of 5.86–40GHz (148.89%) even though use of high loss-tangent material and high gain for 28 GHz (27.50–28.35 GHz) n261–band and 37 GHz (37–38.6 GHz) and 39 GHz (38.6–40GHz) n260–bands with a peak-gain of 8.76 dBi, 10.8 dBi and 9.92 dBi, respectively. Originality/value The proposed methodology of design is very useful to enhance impedance bandwidth to cover all C–, X–, Ku–, K– and Ka–band even though use of low cost material with high loss tangent. In recent literature, the designs were implemented with a costly material and having very low loss tangent and covers partial suggest bands.

scholarly journals A Broadband High-Gain Printed Antenna Array Using Dipole and Loop Patches for 5G Communication Systems

2021 ◽  
Vol 15 ◽  
pp. 42-45
Author(s):  
Yuanzhi Liu ◽  
Mustapha C.E. Yagoub
Keyword(s):  
Antenna Array ◽  
Communication Systems ◽  
Low Cost ◽  
High Gain ◽  
Impedance Bandwidth ◽  
Antenna Element ◽  
Wave Band ◽  
Printed Antenna ◽  
Compact Size ◽  
5G Communication

A broadband and high-gain printed antenna array is presented in this paper. Its single antenna element consists of a loop and two symmetric dipole patches, making the element exhibiting broad impedance bandwidth and improved gain at the targeted frequency, which is 28 GHz, one of the 5G mm-wave band, for this design. An 8×3 antenna array fed by a microstrip line feed network was designed and simulated. With a compact size of 98×32.5 mm2 , the array presents a broad -10 dB impedance bandwidth of 6.8 GHz (24.3%) and a high gain of 18 dBi at 28 GHz. Besides, the single-layered array also features low profile, simple geometry, and low cost, making it a good candidate for 5G communication systems.

scholarly journals Triangular Slot-Loaded Wideband Planar Rectangular Antenna Array for Millimeter-Wave 5G Applications

Electronics ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 778
Author(s):  
Iftikhar Ahmad ◽  
Houjun Sun ◽  
Umair Rafique ◽  
Zhang Yi
Keyword(s):  
Antenna Array ◽  
Millimeter Wave ◽  
Communication Systems ◽  
Ground Plane ◽  
Simulated Data ◽  
Impedance Bandwidth ◽  
Antenna Element ◽  
Single Antenna ◽  
Rectangular Patch ◽  
Half Power

This paper presents a design of a triangular slot-loaded planar rectangular antenna array for wideband millimeter-wave (mm-wave) 5G communication systems. The proposed array realizes an overall size of 35.5 × 14.85 mm2. To excite the array elements, a four-way broadband corporate feeding network was designed and analyzed. The proposed array offered a measured impedance bandwidth in two different frequency ranges, i.e., from 23 to 24.6 GHz and from 26 to 45 GHz. The single-antenna element of the array consists of a rectangular patch radiator with a triangular slot. The partial ground plane was used at the bottom side of the substrate to obtain a wide impedance bandwidth. The peak gain in the proposed array is ≈12 dBi with a radiation efficiency of >90%. Furthermore, the array gives a half-power beamwidth (HPBW) of as low as 12.5°. The proposed array has been fabricated and measured, and it has been observed that the measured results are in agreement with the simulated data.

Sub-terahertz (THz) antenna for Internet of Things and 6G Communication

Frequenz ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hamsakutty Vettikalladi ◽  
Waleed Tariq Sethi ◽  
Wonsuk Ko
Keyword(s):  
Internet Of Things ◽  
Wireless Communication ◽  
Communication Systems ◽  
Side Lobe ◽  
High Gain ◽  
Impedance Bandwidth ◽  
Single Element ◽  
High Frequency Structure Simulator ◽  
Sixth Generation ◽  
Intelligent Communication

Abstract Sub-terahertz (THz) technology is expected to deliver exceptional data rates for future sixth generation wireless communication systems especially for intelligent communication among devices falling under the Internet of Things (IoT) category. Moving from current 5G millimeter wave (mmW) technology towards THz spectrum will eventually provide unprecedented solutions that will guarantee higher transmission rates and channel capacity for any wireless communication system. With various electronic and wireless components working together to fulfill this promise, high gain antennas having compact profile is one such technology that will aid in achieving sub-THz communication while offering low path and power losses with reliable and fast data transfers. In this context, this work proposes a novel deformed patch antenna operating in the sub-THz spectrum i.e. at 300 GHz band. The proposed antenna is fed via a microstrip line following the proximity coupled feeding technique. Utilizing this technique provides a wide impedance bandwidth with a broadside radiation pattern having minimum side lobe levels of around −12 dB and a directivity of 10–15 dBi for the single and array elements respectively. The proposed design has a small footprint of 1.5 × 1.5 × 0.06 mm3 for the single element while the array element has dimensions of 6 × 5 × 0.06 mm3. Both the designs have been simulated in Computer Simulation Technology-Microwave Studio (CST-MWS) and the results verified via high-frequency structure simulator (HFSS) simulator. The results confirm the viability of the proposed designs to be potential candidates for future sixth generation and IoT based applications.

scholarly journals Millimeter Wave Fabry-Perot Resonator Antenna Fed by CPW with High Gain and Broadband

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Xue-Xia Yang ◽  
Guan-Nan Tan ◽  
Bing Han ◽  
Hai-Gao Xue
Keyword(s):  
Millimeter Wave ◽  
Coplanar Waveguide ◽  
Dielectric Substrate ◽  
High Gain ◽  
Center Frequency ◽  
Impedance Bandwidth ◽  
Gain Bandwidth ◽  
Broad Bandwidth ◽  
Low Profile ◽  
Fabry Perot

A novel millimeter wave coplanar waveguide (CPW) fed Fabry-Perot (F-P) antenna with high gain, broad bandwidth, and low profile is reported. The partially reflective surface (PRS) and the ground form the F-P resonator cavity, which is filled with the same dielectric substrate. A dual rhombic slot loop on the ground acts as the primary feeding antenna, which is fed by the CPW and has broad bandwidth. In order to improve the antenna gain, metal vias are inserted surrounding the F-P cavity. A CPW-to-microstrip transition is designed to measure the performances of the antenna and extend the applications. The measured impedance bandwidth ofS11less than −10 dB is from 34 to 37.7 GHz (10.5%), and the gain is 15.4 dBi at the center frequency of 35 GHz with a 3 dB gain bandwidth of 7.1%. This performance of the antenna shows a tradeoff among gain, bandwidth, and profile.

scholarly journals A Compact Vivaldi Shaped Partially Dielectric Loaded TEM Horn Antenna for UWB Communication

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Mustafa İlarslan ◽  
A. Serdar Türk ◽  
Salih Demirel ◽  
M. Emre Aydemir ◽  
A. Kenan Keskin
Keyword(s):  
Communication Systems ◽  
Horn Antenna ◽  
High Gain ◽  
Simulation Software ◽  
Antenna Structure ◽  
Horn Antennas ◽  
Compact Antenna ◽  
Uwb Antennas ◽  
Tem Horn ◽  
Uwb Applications

Ultrawideband (UWB) antennas are of huge demand and Vivaldi antennas as well as the TEM horn antennas are good candidates for UWB applications as they both have relatively simple geometry and high gain over a wide bandwidth. The aim of this study is to design a compact antenna that achieves maximum gain over a bandwidth between 1.5 and 10.6 GHz while minimizing its size. The idea is to make use of combined respective advantages of Vivaldi and TEM horn antennas to achieve the desired goals by shaping the TEM horn antenna to look like a Vivaldi antenna. The antenna structure is modified by a dielectric load in the center to increase the gain bandwidth. It is placed in a surrounding box made of PEC material to reduce the undesired side lobes and to obtain more directive radiation pattern. The simulations are performed by using the CST STUDIO SUITE electromagnetic (EM) simulation software and they are later verified by the actual measurements. The Vivaldi shaped partially dielectric loaded (VS-PDL) TEM horn antenna is proposed as a compact UWB antenna for systems using the newly established UWB band and also for the communication systems of popular bands like ISM, Wi-Fi, and GSM.

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