16-element CPW Series Fed Millimeter-wave Hexagonal Array Antenna for 5G Femtocell Applications

2021 ◽  
pp. 1-15
Author(s):  
V. Harini ◽  
M. V. S. Sairam ◽  
R. Madhu
Keyword(s):  
Millimeter Wave ◽  
Return Loss ◽  
Coplanar Waveguide ◽  
Array Antenna ◽  
Single Element ◽  
Hexagonal Array ◽  
Frequency Range ◽  
Fractional Bandwidth ◽  
Indoor Communications ◽  
Element Array

Abstract A 16-element coplanar waveguide series fed hexagonal array antenna is proposed at millimeter-wave frequency range. In this paper, the analysis is initiated from a single-element hexagonal patch then extended to 1×2 array, 1×4 array, and 4×4 series fed hexagonal patch array antennas. The idea behind this design is to improve fractional bandwidth stage-wise with improved gain maintaining constant efficiency with all the structures. The 16-element array antenna is fabricated on Rogers RT Duriod 5880™ substrate with ɛ r = 2.2 and 0.508 mm thickness. This array antenna exhibits low return loss at 28 GHz with a reflection coefficient value of −31.02 dB including almost 102% radiation efficiency and attained a maximum gain value of 8.98 dBi. The results are quite comparable with simulated 4×4 array antenna using the HFSS tool. The size of the proposed antenna is quite small which will be best suited for 5 G Femtobase stations to provide indoor communications at millimeter-wave frequencies.

scholarly journals Printed dipole antenna and its arrays for wireless applications

2018 ◽  
Vol 7 (2.7) ◽  
pp. 952
Author(s):  
V Teju ◽  
P V. P. S Nikhil ◽  
A Pranusha ◽  
Ch Divya ◽  
G Bhanuprakash
Keyword(s):  
Reflection Loss ◽  
Mutual Coupling ◽  
Dipole Antenna ◽  
Wide Frequency Range ◽  
Single Element ◽  
Frequency Range ◽  
Scanning Angle ◽  
Wireless Applications ◽  
Element Array

This paper proposes single element of micro-stripe antenna having wider bandwidth and also its arrays which are implemented for wire-less applications. In contemplation of wide frequency range of operation, antenna is fed with integrated balun. The single element antenna works under frequency range of 34GHz to 46GHz where reflection loss is less than -10dB and the obtained gain is 2.1 dBi. The linear 8-element array of antenna has been implemented and to obtain low mutual coupling between the elements of antenna a rectangular stub has been implemented. By enforcing the array methodology the not only the overall gain of the antenna has increased but also results in wider scanning angle.  

CPW-fed concurrent, dual band planar antenna for millimeter wave applications

2018 ◽  
Vol 10 (9) ◽  
pp. 1088-1095
Author(s):  
Smriti Agarwal ◽  
Dharmendra Singh
Keyword(s):  
Millimeter Wave ◽  
Coplanar Waveguide ◽  
Cost Effective ◽  
Dual Band ◽  
Single Frequency ◽  
60 Ghz ◽  
Fractional Bandwidth ◽  
High Data ◽  
V Band ◽  
Dual Band Antenna

AbstractIn recent years, millimeter wave (MMW) has received tremendous interest among researchers, which offers systems with high data rate communication, portability, and finer resolution. The design of the antenna at MMWs is challenging as it suffers from fabrication and measurement complexities due to associated smaller dimensions. Current state-of-the-art MMW dual-band antenna techniques demand high precision fabrication, which increases the overall cost of the system. Henceforth, the design of an MMW antenna with fabrication and measurement simplicity is quite challenging. In this paper, a simple coplanar waveguide (CPW) fed single-band MMW antenna operating at 94 GHz (W band) and a dual-band MMW antenna operating concurrently at 60 GHz (V band) and 86 GHz (E band) have been designed, fabricated, and measured. A 50 Ω CPW-to-microstrip transition has also been designed to facilitate probe measurement compatibility and to provide proper feeding to the antenna. The fabricated single frequency 94 GHz antenna shows a fractional bandwidth of 11.2% andE-plane (H-plane) gain 6.17 dBi (6.2 dBi). Furthermore, the designed MMW dual-band antenna shows fractional bandwidth: 2/6.4%, andE-plane (H-plane) gain: 7.29 dBi (7.36 dBi)/8.73 dBi (8.68 dBi) at 60/86 GHz, respectively. The proposed antenna provides a simple and cost-effective solution for different MMW applications.

MULTIBAND CPW-FED SLOT ANTENNA FOR WLAN/WIMAX APPLICATIONS

2015 ◽  
Vol 77 (10) ◽  
Author(s):  
Igbafe Orikumhi ◽  
Mohamad Rijal Hamid ◽  
Ali Nyangwarimam Obadiah
Keyword(s):  
Radiation Pattern ◽  
Return Loss ◽  
Coplanar Waveguide ◽  
Ground Plane ◽  
Slot Antenna ◽  
Frequency Range ◽  
Resonant Frequencies ◽  
Good Agreement

A square slot antenna fed by a coplanar waveguide (CPW) is presented in this paper. The design consist of two pairs of “F” shaped planar strips placed within a square slotted ground. The strips are used to excite multiple resonant frequencies, the strips are connected to the ground plane by means of ideal switches. The proposed antenna has achieved multiple resonant frequencies of 2.4/5.2/5.8 GHz for WLAN and 3.5/5.5 for WiMAX applications. The measured results shows a good agreement with the simulated results in terms of return loss, radiation pattern and gain. The proposed antenna is designed for the frequency range of 2 GHz to 7 GHz which makes it suitable for Bluetooth, WLAN and WiMAX applications. 

Compact transition from CBCPW to substrate integrated suspended line (SISL) for operation up to 46 GHz

2019 ◽  
Vol 12 (2) ◽  
pp. 116-119
Author(s):  
F. Parment ◽  
A. Ghiotto ◽  
T.-P. Vuong ◽  
L. Carpentier ◽  
K. Wu
Keyword(s):  
Insertion Loss ◽  
Return Loss ◽  
Coplanar Waveguide ◽  
Experimental Results ◽  
Frequency Range ◽  
Better Than

AbstractA compact transition between conductor-backed coplanar waveguide (CBCPW) and substrate integrated suspended line (SISL) is presented. Compared to the reported transitions from CBCPW to SISL, performance and compactness are improved. For demonstration purpose, a multilayer transition is designed and fabricated for operation up to 46 GHz. Experimental results, based on an electronic calibration and thru–reflect–line calibration allowing measurement in the 0.01–50 GHz frequency range, demonstrate an insertion loss of 0.59 ± 0.51 dB with a return loss of better than 10 dB in the 10 MHz to 46 GHz frequency range.

Polymer-based micromachined rectangular coaxial filters for millimeter-wave applications

2011 ◽  
Vol 3 (2) ◽  
pp. 115-120 ◽  
Author(s):  
Aline Jaimes-Vera ◽  
Ignacio Llamas-Garro ◽  
Maolong Ke ◽  
Yi Wang ◽  
Michael J. Lancaster ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Millimeter Waves ◽  
Return Loss ◽  
Low Cost ◽  
Coplanar Waveguide ◽  
Coaxial Line ◽  
Center Conductor ◽  
Low Cost Manufacturing ◽  
Insertion Losses ◽  
Better Than

In this paper, micromachined devices for millimeter-wave applications at U- and V-bands are presented. These structures are designed using a rectangular coaxial line built of gold-coated SU-8 photoresist layers, where the coaxial center conductor is suspended in air by stubs. The designs include a stepped coplanar waveguide (CPW)-to-coaxial transition at 63 GHz, with an insertion loss of 0.39 dB at 67.75 GHz and a return loss better than −10 dB across the band of operation between 54.7 and 70.3 GHz. Two filters have been designed; one centered at 42 GHz with a 10% bandwidth, and another at 63 GHz with a 5% bandwidth. Measured insertion losses of 0.77 and 2.59 dB were obtained for these filters, respectively. Measured return loss lower than 13.8 dB over the passband was achieved for both designs. The structures presented in this paper involve a low-cost manufacturing process suitable to produce integrated subsystems at millimeter waves.

Millimeter-Wave Frequency Performance of Conductor-Backed Coplanar Waveguide on FR408 Packaging Material

2012 ◽  
Vol 9 (4) ◽  
pp. 166-170 ◽  
Author(s):  
Supreetha Aroor ◽  
Rashaunda Henderson
Keyword(s):  
Millimeter Wave ◽  
Return Loss ◽  
Low Cost ◽  
Coplanar Waveguide ◽  
Packaging Material ◽  
Attenuation Constant ◽  
Cost System ◽  
Ansoft Hfss ◽  
Cmos Ic ◽  
First Time

This work demonstrates the performance of conductor-backed coplanar waveguide (CBCPW) lines on FR408 for millimeter-wave applications. These lines can be used as interconnects to integrate a CMOS IC with an antenna fabricated on FR408 for a low-cost system-in-package solution. To our knowledge, this is the first time coplanar lines on FR4 have been studied for millimeter-wave applications. Ansoft HFSS simulation results for 50 Ω coplanar lines show a return loss of 20 dB and an insertion loss of 0.5 dB/mm at 100 GHz. Measured results up to 67 GHz show that on average, the CBCPW lines have an attenuation constant of 0.22 dB/mm.

scholarly journals Uniplanar Millimeter-Wave Log-Periodic Dipole Array Antenna Fed by Coplanar Waveguide

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Guohua Zhai ◽  
Yong Cheng ◽  
Qiuyan Yin ◽  
Shouzheng Zhu ◽  
Jianjun Gao
Keyword(s):  
Integrated Circuits ◽  
Millimeter Wave ◽  
Return Loss ◽  
Low Cost ◽  
Coplanar Waveguide ◽  
Antenna Gain ◽  
Low Loss ◽  
Coupled Line ◽  
Field Patterns ◽  
Communication Circuits

A uniplanar millimeter-wave broadband printed log-periodic dipole array (PLPDA) antenna fed by coplanar waveguide (CPW) is introduced. This proposed structure consists of several active dipole elements, feeding lines, parallel coupled line, and the CPW, which are etched on a single metallic layer of the substrate. The parallel coupled line can be optimized to act as a transformer between the CPW and the PLPDA antenna. Meanwhile, this transform performs the task of a balun to achieve a wideband, low cost, low loss, simple directional antenna. The uniplanar nature makes the antenna suitable to be integrated into modern printed communication circuits, especially the monolithic millimeter-wave integrated circuits (MMIC). The antenna has been carefully examined and measured to present the return loss, far-field patterns, and antenna gain.

Design of Curved Patch Array Antenna for Small Missile Application

2013 ◽  
Vol 378 ◽  
pp. 487-491
Author(s):  
Jessada Monthasuwan ◽  
Thanaset Thosdeekoraphat ◽  
Chanchai Thongsopa
Keyword(s):  
Return Loss ◽  
Copper Plate ◽  
Array Antenna ◽  
Manufacturing Cost ◽  
Frequency Range ◽  
Metal Object ◽  
Easy Method ◽  
Military Application ◽  
Communication Devices ◽  
Plate Antenna

The design of curved patch array antenna for small missile application is presented. A thin copper plate antenna was attached a part of plastic pipe. This antenna is designed on cylinder metal object for such an application in military communication devices and antenna analysis was conducted by using the CST program. The frequency of a designed antenna was adjusted at 2.4 GHz. The proposed antenna is realized and experimentally examined, since it is small size, light weight, easy method fabrication and low manufacturing cost. In measurement, it is found that the propose antenna have the return loss was lower than-10 dB which covered frequency range 2.3 GHz-2.7 GHz. The average gain achieved in the propose antenna is about 6.13 dB over the operating frequency. The advantage of the proposed antenna is that it can be used to small missile for military application.

scholarly journals Millimeter Wave Fifth Generation (5G) Antenna for Smartphone Application

2019 ◽  
Vol 18 (2) ◽  
pp. 44-48
Author(s):  
Fatin Iswani Azmi ◽  
Farid Zubir ◽  
Norsaidah Muhamad Nadzir
Keyword(s):  
Millimeter Wave ◽  
Low Cost ◽  
Ground Plane ◽  
Smartphone Application ◽  
Single Element ◽  
Smartphone Applications ◽  
Frequency Range ◽  
Excellent Performance ◽  
Mobile Phone Application ◽  
Fifth Generation

In this paper, a single element antenna is designed at millimeter-wave frequency bands for future 5G smartphone applications. The configuration of proposed antenna is multiple L-slots on the ground plane which is designed on a low cost FR4 board. The antenna covers a frequency range between 28 to 35 GHz with a higher bandwidth 4.7 GHz. The antenna shows an excellent performance when integrated with the mobile phone application. The single element antenna exhibits a maximum radiation pattern around 5.945 dBi.

Wideband Monopole Fractal Heptagonal Antenna Implementation in X-Band Frequency Range

Frequenz ◽  
2017 ◽  
Vol 71 (11-12) ◽  
Author(s):  
Muhammad Naeem Iqbal ◽  
Hamood Ur-Rahman ◽  
T Tauqeer ◽  
Rodica Ramer
Keyword(s):  
Return Loss ◽  
Coplanar Waveguide ◽  
Fractal Antenna ◽  
Frequency Range ◽  
Band Frequency ◽  
Directional Radiation ◽  
X Band ◽  
Monopole Antennas ◽  
Major Application ◽  
Uwb Applications

AbstractA wideband heptagonal fractal monopole antenna with coplanar waveguide feed is designed and fabricated in X-band frequency range. Comparison of heptagonal fractal monopole antennas with two different substrates to achieve optimum efficiency for UWB applications is presented. FR4 and RT/Duroid 5880 substrates are used for antenna design and fabrication. Four iterations of base shape are used. Fractal antenna has omni-directional radiation pattern. Simulated and measured results showed that monopole fractal antenna with RT/Duroid 5880 substrate has better performance than fractal antenna with FR4 substrate in terms of bandwidth and return loss. Major application area of proposed antenna is wireless body area networks.

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