scholarly journals Printed Wide-Slot Antenna Design with Bandwidth and Gain Enhancement on Low-Cost Substrate

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
M. Samsuzzaman ◽  
M. T. Islam ◽  
J. S. Mandeep ◽  
N. Misran
Keyword(s):  
Microstrip Line ◽  
Low Cost ◽  
Ground Plane ◽  
Simulation Software ◽  
Antenna Design ◽  
Slot Antenna ◽  
Design Parameters ◽  
Impedance Bandwidth ◽  
Strip Line ◽  
Gain Enhancement

This paper presents a printed wide-slot antenna design and prototyping on available low-cost polymer resin composite material fed by a microstrip line with a rotated square slot for bandwidth enhancement and defected ground structure for gain enhancement. An I-shaped microstrip line is used to excite the square slot. The rotated square slot is embedded in the middle of the ground plane, and its diagonal points are implanted in the middle of the strip line and ground plane. To increase the gain, four L-shaped slots are etched in the ground plane. The measured results show that the proposed structure retains a wide impedance bandwidth of 88.07%, which is 20% better than the reference antenna. The average gain is also increased, which is about 4.17 dBi with a stable radiation pattern in the entire operating band. Moreover, radiation efficiency, input impedance, current distribution, axial ratio, and parametric studies of S11 for different design parameters are also investigated using the finite element method-based simulation software HFSS.

scholarly journals CPW-fed circularly-polarized antenna array with high front-to-back ratio and low-profile

Open Physics ◽  
2018 ◽  
Vol 16 (1) ◽  
pp. 651-655 ◽  
Author(s):  
Yilin Liu ◽  
Kama Huang
Keyword(s):  
Antenna Array ◽  
Coplanar Waveguide ◽  
Ground Plane ◽  
Axial Ratio ◽  
Antenna Design ◽  
Impedance Bandwidth ◽  
Feeding Method ◽  
Circularly Polarized ◽  
Low Profile ◽  
Novel Design

Abstract A novel design of a coplanar waveguide (CPW) feed antenna array with circular polarization (CP) and a high front-to-back ratio is described. The proposed CP array is achieved by using a compact CPW–slotline transition network etched in the ground plane. The measured results show that this kind of feeding method can improve the impedance bandwidth, as well as the axial ratio bandwidth of the CP antenna array and provide adequate gain. The proposed array can achieve a 6.08% impedance bandwidth and a 4.10% CP bandwidth. Details of the antenna design and experimental results are presented and discussed.

scholarly journals Bandwidth Enhancement of Tri-band Rectangular Dielectric Resonator Antenna using Novel Offset Feed for WLAN/WIMAX Applications

2020 ◽  
Vol 9 (5) ◽  
pp. 2305-2308
Keyword(s):  
Dielectric Resonator ◽  
Microstrip Line ◽  
Return Loss ◽  
Radiation Efficiency ◽  
Antenna Design ◽  
Design Parameters ◽  
Dielectric Resonator Antenna ◽  
Bandwidth Enhancement ◽  
Frequency Bands ◽  
Rectangular Dielectric Resonator Antenna

In this article, a novel offset microstrip line feed Rectangular Dielectric Resonator Antenna is used for bandwidth enhancement. The parameters such as Bandwidth, Return Loss and Radiation efficiency are improved in the proposed antenna. A comparison is also shown for the proposed feed structure with and without conformal strips. The improvement in the bandwidth is observed from 25% to 65% by optimizing the antenna design parameters. It works in three frequency bands, that is, 2.03-3.69 GHz, 3.86-7.26 GHz, and 7.32-9.26 GHz. The proposed antenna is appropriate for WIMAX/WLAN applications.

scholarly journals Trapezoid Shape Patch Antenna for WLAN Application

2019 ◽  
Vol 8 (9S) ◽  
pp. 512-516
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Ground Plane ◽  
Local Area ◽  
Design Parameters ◽  
Impedance Bandwidth ◽  
Area Network ◽  
S Parameter

In this paper,CPW fed Trapezoid shape patch antenna is analyzed and investigated for Wireless Local Area Network (WLAN) application. The proposed antenna is fabricated on FR4 substrate having dimensions of 19mm ×21.2mm ×1.6mm. It resonates at 5.44 GHz frequency with peak return loss of 25.8 dB. The parametric study of proposed antenna is carried out to understand the effect of different values of ground plane on the impedance bandwidth, return loss of the antenna andalso to optimize the antenna parameters. The CPW-fed is used to enhance the bandwidth and to reduce the return loss of the antenna. The importance of different design parameters like current distribution, S-parameter, gain, and radiation pattern are studied. The results of the proposed antenna are useful for WLAN Application.

Circularly Polarized Rectangular Microstrip Patch Antenna with Finite Ground Plane

2015 ◽  
Vol 4 (2) ◽  
pp. 74
Author(s):  
Sanyog Rawat ◽  
Kamlesh Kumar Sharma
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Ground Plane ◽  
Axial Ratio ◽  
Microstrip Patch Antenna ◽  
Simulation Software ◽  
Impedance Bandwidth ◽  
Circularly Polarized ◽  
Microstrip Patch ◽  
Rectangular Patch

<p class="Abstract"><span style="font-weight: normal;">In this paper a new geometry of patch antenna is proposed with improved bandwidth and circular polarization. The radiation performance of circularly polarized rectangular patch antenna is investigated by applying IE3D simulation software and its performance is compared with that of conventional rectangular patch antenna.</span> <span style="font-weight: normal;">Finite Ground truncation technique is used to obtain the desired results. The simulated return loss, axial ratio and smith chart with frequency for the proposed antenna is reported in this paper. It is shown that by selecting suitable ground-plane dimensions, air gap and location of the slits, the impedance bandwidth can be enhanced upto 10.15 % as compared to conventional rectangular patch (4.24%) with an axial ratio bandwidth of 4.05%.</span></p><p> </p><p> </p>

scholarly journals Design of Frequency- and Pattern-Reconfigurable Wideband Slot Antenna

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Liping Han ◽  
Caixia Wang ◽  
Wenmei Zhang ◽  
Runbo Ma ◽  
Qingsheng Zeng
Keyword(s):  
Microstrip Line ◽  
Beam Steering ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Pin Diodes ◽  
Frequency Bands ◽  
Feed Line

A wideband slot antenna with frequency- and pattern-reconfigurable characteristics for TD-LTE (3.4–3.8 GHz) and C-band (3.7–4.2 GHz) applications is proposed. The antenna consists of two symmetric slots that are fed by a fork-shaped microstrip line. Two PIN diodes are loaded in the slots to produce two different frequency bands. Meanwhile, two additional PIN diodes are inserted in the feed line to achieve the pattern reconfigurability. The wideband operation is realized by using the symmetric slots and fork-shaped feed line. Simulated and measured results show that the antenna provides 25° and 20° beam-steering in 3.4–3.8 and 3.7–4.2 GHz bands, respectively. Also, an impedance bandwidth of at least 12.8% is obtained in the operating bands.

scholarly journals Compact Shorted Stacked-Patch Antenna Integrated with Chip-Package Based on LTCC Technology

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Yongjiu Li ◽  
Long Li ◽  
Xiwang Dai ◽  
Cheng Zhu ◽  
Feifei Huo ◽  
...  
Keyword(s):  
Low Temperature ◽  
Patch Antenna ◽  
Ground Plane ◽  
Center Frequency ◽  
Design Parameters ◽  
Impedance Bandwidth ◽  
Resonant Frequencies ◽  
Low Profile ◽  
On Chip ◽  
Stacked Patch Antenna

A low profile chip-package stacked-patch antenna is proposed by using low temperature cofired ceramic (LTCC) technology. The proposed antenna employs a stacked-patch to achieve two operating frequency bands and enhance the bandwidth. The height of the antenna is decreased to 4.09 mm (aboutλ/25 at 2.45 GHz) due to the shorted pin. The package is mounted on a 44 × 44 mm2ground plane to miniaturize the volume of the system. The design parameters of the antenna and the effect of the antenna on chip-package cavity are carefully analyzed. The designed antenna operates at a center frequency of 2.45 GHz and its impedance bandwidth(S11< -10 dB)is 200 MHz, resulting from two neighboring resonant frequencies at 2.41 and 2.51 GHz, respectively. The average gain across the frequency band is about 5.28 dBi.

scholarly journals A Low Profile Wideband Log Periodic Microstrip Antenna Design for C-Band Applications

2019 ◽  
Vol 8 (2) ◽  
pp. 48-52 ◽  
Author(s):  
M. Yerlikaya ◽  
S. S. Gültekin ◽  
D. Uzer
Keyword(s):  
Dielectric Constant ◽  
Microstrip Antenna ◽  
Microstrip Line ◽  
Ground Plane ◽  
Antenna Design ◽  
Tangent Loss ◽  
Low Profile ◽  
Measurement Results ◽  
Simulation Results ◽  
5 Ghz

In this study, a wideband low profile microstrip antenna design for C-band applications is presented. The proposed antenna consists of a monopol log periodic patch in the equilateral triangular dimensions with the microstrip line fed and a rectangular ground plane. The antenna has 9×19.8 mm2 overall size, thickness of 1.6 mm and 4.3 dielectric constant. According to the simulation results, the proposed antenna has a very wide bandwidth while operating in the frequency band of 4.25-7.95 GHz and 5 GHz resonance frequency. The proposed antenna was also prototyped on FR4 substrate with the 0.02 tangent loss and the measurement results were quite similar by the simulated results.

scholarly journals A Dual Frequency Dielectric Resonator Antenna for Wireless Communication Applications

2019 ◽  
Vol 9 (1S5) ◽  
pp. 99-102
Keyword(s):  
Wireless Communication ◽  
Dielectric Resonator ◽  
Dielectric Material ◽  
Low Cost ◽  
Ground Plane ◽  
Strip Line ◽  
Dielectric Resonator Antenna ◽  
Dual Frequency ◽  
Rectangular Slot ◽  
High Dielectric

A dual frequency Dielectric Resonator antenna for wireless communication applications in the S and C bands with an operating frequency of 2.65GHz and 4.62GHz is presented. The patch is a dielectric material with a high dielectric constant value of 20. A 50Ω strip line is considered as feed and is coupled to the dielectric radiator via the rectangular slot etched in ground plane. The slot etched in ground plane is made so as to facilitate the power form the feed line to the radiator. The overall dimension of the antenna is 100mm×35mm×0.8mm. A dual frequency antenna has been proposed which will be operational at the frequencies of 2.65GHz and 4.62GHz with a gain of 4.42dB and 7.78dB respectively. Low cost FR4 material is been used as the laminate base for the antenna which will act as the dielectric material.

scholarly journals Bandwidth Enhancement of a Bell-shaped UWB Antenna for Indoor Localization Systems

2021 ◽  
Vol 11 (1) ◽  
pp. 6691-6695
Author(s):  
M. S. Karoui ◽  
N. Ghariani ◽  
M. Lahiani ◽  
H. Ghariani
Keyword(s):  
Indoor Localization ◽  
Low Cost ◽  
Ground Plane ◽  
Wide Band ◽  
Impedance Bandwidth ◽  
Uwb Antenna ◽  
Simple Method ◽  
Bandwidth Enhancement ◽  
Measured Impedance ◽  
Localization Systems

In this paper, a simple method of enhancing the bandwidth of the Bell-shaped UWB Antenna for indoor localization systems is proposed. Therefore, a modified version of the bell-shaped Ultra-Wide Band (UWB) antenna for indoor localization systems is presented. The proposed antenna is printed on a low-cost FR-4 substrate of 21×27×1.6mm3 size. It is composed of a bell-shaped radiating patch and a multi-slotted ground plane. The measured results show that the proposed antenna has an impedance bandwidth of about 11.2GHz ranging from 3.16GHz to 14.36GHz at S11<−10dB. Compared to the original version, an enhancement of about 5.56GHz in the measured impedance bandwidth was observed.

scholarly journals A 3 – 18 GHz UWB Antenna with modified feed-line

2021 ◽  
Author(s):  
Srikanth Itapu
Keyword(s):  
Medical Imaging ◽  
Planar Waveguide ◽  
Ground Plane ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Design Parameters ◽  
Impedance Bandwidth ◽  
Uwb Antenna ◽  
Feed Line ◽  
Iot Applications

Abstract A Co-Planar Waveguide fed circular ultra-wide band antenna with modified ground-plane and feedline is designed on a FR4 (ϵr=4.3) substrate of thickness 0.01λ0. The proposed antenna exhibits an overall impedance bandwidth ranging from 2.99 GHz to 18.0 GHz and beyond (with S11< -10 dB). Design parameters have been optimized to achieve the UWB bandwidth. The measured radiation patterns of this antenna are omnidirectional in H- plane and bidirectional in E-plane. An extended impedance bandwidth is achieved as a result of modified feed-line. The proposed antenna can be used for medical imaging and urban IoT applications.

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