scholarly journals UWB Low-Profile Boat-Radiator Antenna (BRA) with Dual C-Shape Co-Radiative Ground for Multi-Standard Communication Networks

Sensors ◽  
2020 ◽  
Vol 20 (24) ◽  
pp. 7051
Author(s):  
Chungang Zhang ◽  
Yongjun Xie ◽  
Legen Dai
Keyword(s):  
Communication Networks ◽  
Frequency Band ◽  
Planar Waveguide ◽  
The Other ◽  
Ultra Wideband ◽  
Resonant Circuit ◽  
Uwb Antenna ◽  
Operating Band ◽  
Low Profile

Multiple standard communication networks operate in the frequency band of 1.8–6 GHz, which makes lots of antennas available in the limited space. To solve the problem of interference and improve the performance of these antennas, an ultra-wideband (UWB) antenna is presented. It consists of a boat-radiator and a dual C-shape co-radiative ground (DCCRG). One half of the DCCRG plays a role of the ground of a co-planar waveguide fed to the proposed boat-radiator antenna (BRA), while the other half works as a multiple order L-resonant circuit to broaden the lower operating band. Uniform bidirectional radiation is presented with the size of 0.25 λ × 0.375 λ × 0.0063 λ over the frequency band of 1.7–6.3 GHz (115%). The proposed antenna achieves around twice the bandwidth (60%) of the same structured antenna without the structure acting as a multiple order L-resonant circuit. Moreover, the stable boresight gain of 3.6 dBi ± 1.25 dBi is realized over the operating band.

Low-profile U-shaped DRA for ultra-wideband applications

2016 ◽  
Vol 9 (3) ◽  
pp. 621-627 ◽  
Author(s):  
Idris Messaoudene ◽  
Tayeb A. Denidni ◽  
Abdelmadjid Benghalia
Keyword(s):  
Dielectric Resonator ◽  
Ground Plane ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Radiation Patterns ◽  
Wide Bandwidth ◽  
Operating Band ◽  
Low Profile ◽  
Measurement Results

In this paper, a microstrip-fed U-shaped dielectric resonator antenna (DRA) is simulated, designed, and fabricated. This antenna, in its simple configuration, operates from 5.45 to 10.8 GHz. To enhance its impedance bandwidth, the ground plane is first modified, which leads to an extended bandwidth from 4 to 10.8 GHz. Then by inserting a rectangular metallic patch inside the U-shaped DRA, the bandwidth is increased more to achieve an operating band from 2.65 to 10.9 GHz. To validate these results, an experimental antenna prototype is fabricated and measured. The obtained measurement results show that the proposed antenna can provide an ultra-wide bandwidth and a symmetric bidirectional radiation patterns. With these features, the proposed antenna is suitable for ultra-wideband applications.

scholarly journals Ultrawideband Low-Profile and Miniaturized Spoof Plasmonic Vivaldi Antenna for Base Station

2020 ◽  
Vol 10 (7) ◽  
pp. 2429 ◽  
Author(s):  
Li Hui Dai ◽  
Chong Tan ◽  
Yong Jin Zhou
Keyword(s):  
Radiation Pattern ◽  
Frequency Band ◽  
High Gain ◽  
Base Station ◽  
Ultra Wideband ◽  
Radiation Patterns ◽  
Low Profile ◽  
Simulation Results ◽  
Vivaldi Antenna ◽  
Good Agreement

Stable radiation pattern, high gain, and miniaturization are necessary for the ultra-wideband antennas in the 2G/3G/4G/5G base station applications. Here, an ultrawideband and miniaturized spoof plasmonic antipodal Vivaldi antenna (AVA) is proposed, which is composed of the AVA and the loaded periodic grooves. The designed operating frequency band is from 1.8 GHz to 6 GHz, and the average gain is 7.24 dBi. Furthermore, the measured results show that the radiation patterns of the plasmonic AVA are stable. The measured results are in good agreement with the simulation results.

scholarly journals Design of a CPW-Fed Band-Notched UWB Antenna Using a Feeder-Embedded Slotline Resonator

2008 ◽  
Vol 2008 ◽  
pp. 1-5 ◽  
Author(s):  
Amin M. Abbosh
Keyword(s):  
Design Method ◽  
Coplanar Waveguide ◽  
The Other ◽  
Ultra Wideband ◽  
Uwb Antenna ◽  
Wideband Antenna ◽  
Compact Size ◽  
Two Samples ◽  
Bandstop Filter

A complete design method for a compact uniplanar ultra-wideband antenna with subband rejection capability is presented. A slotline resonator is incorporated in the coplanar waveguide feeder of the antenna to act as a bandstop filter, hence enabling the rejection of any undesired band within the passband of the antenna. Two samples of the proposed antenna were designed and manufactured. One of the developed antennas does not contain a resonator, whereas the other contains a slotline resonator. The designed antennas feature a compact size of 27 mm×27 mm. Results of the simulation and measurement show that the designed antennas have a bandwidth from 3 GHz to more than 11 GHz. The results also reveal that the use of the resonator in the feeder of the antenna efficiently rejects any undesired subband, such as the 4.9–5.9 GHz band assigned for IEEE802.11a and HIPERLAN/2. The gain of the antennas with the resonator is about 2.2 dBi at the passband, while it is less than −8 dBi at the rejected subband.

scholarly journals Design and Investigation of Differential-Fed Ultra-Wideband Patch Antenna with Polarization Diversity

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Yanfang Wang ◽  
Fuguo Zhu ◽  
Steven Gao
Keyword(s):  
Frequency Band ◽  
Patch Antenna ◽  
Bottom Layer ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Polarization Diversity ◽  
Uwb Antenna ◽  
Feeding Mechanism ◽  
Microstrip Lines ◽  
Dual Polarized

A novel single- or dual-polarized ultra-wideband (UWB) patch antenna fed by coupled feeding mechanism is proposed. The single-polarized antenna consists of a square ring patch and two Γ-shaped patches which are coupled to the radiating patch. The vertical portions of the Γ-shaped patches are connected to the microstrip lines which are printed on the bottom layer of the grounded FR4 substrate. To realize the differential feeding mechanism for enhancing the polarization purity, a tapered balun is employed to excite the antenna. Further to provide dual linear orthogonal polarizations, another pair of Γ-shaped patches is added in the single-polarized UWB antenna. The dual-polarized UWB antenna prototype can achieve two orthogonal polarizations with an impedance bandwidth (S11≤-10 dB) of 113% and isolation of over 25 dB across the entire frequency band.

scholarly journals A Transient UWB Antenna Array Used with Complex Impedance Surfaces

2010 ◽  
Vol 2010 ◽  
pp. 1-8 ◽  
Author(s):  
A. Godard ◽  
L. Desrumaux ◽  
V. Bertrand ◽  
J. Andrieu ◽  
M. Lalande ◽  
...  
Keyword(s):  
Antenna Array ◽  
Frequency Band ◽  
Beam Steering ◽  
Complex Impedance ◽  
Two Dimensions ◽  
Ultra Wideband ◽  
Uwb Antenna ◽  
Radiation Characteristics ◽  
Radar Applications

The conception of a novel Ultra-Wideband (UWB) antenna array, designed especially for transient radar applications through the frequency band (300 MHz–3 GHz), is proposed in this paper. For these applications, the elementary antenna must be compact and nondispersive, and the array must be able to steer in two dimensions. The geometry of the elementary antenna and its radiation characteristics are presented. The array beam steering is analyzed and a technique making the increase of the transient front-to-back ratio possible is described.

scholarly journals Characteristics UWB Planar Antenna with dual notched bands for WIMAX and WLAN

2018 ◽  
Vol 7 (5) ◽  
pp. 20-25
Author(s):  
M. Debab ◽  
Z. Mahdjoub
Keyword(s):  
Frequency Band ◽  
Loss Tangent ◽  
High Frequency ◽  
Coplanar Waveguide ◽  
Ultra Wideband ◽  
Planar Antenna ◽  
Network Analyzer ◽  
Uwb Antenna ◽  
Quarter Wavelength ◽  
Novel Design

In this article, a novel design of ultra wideband monopole antenna with dual notched bands performance is proposed. The size of the UWB antenna is minimized to 20 -17.6mm2 , printed on FR4 substrate 1.5 mm thickness and loss tangent tan𝛿 =0.02, and is fed by coplanar waveguide. The operation bandwidth of the designed antenna is from 3.1 GHz to more than 10 GHz. Band notches characteristics of antenna to reject the frequency band, WIMAX Band and WLAN Band, is realized by cutting three quarter wavelength slots in the radiating patch. A quarter wavelength slot in the radiator of the antenna is used to create a frequency band notch at the WIMAX frequency band. However, the WLAN frequency band is notched using two symmetrical quarter wavelength slots. The proposed antenna is simulated using HFSS and CST high frequency simulators. These results are compared with measured results by using network analyzer.

Compact Design of an UWB Antenna with Dual Band-Notched Characteristic

2012 ◽  
Vol 195-196 ◽  
pp. 13-16
Author(s):  
Wen Bo Zeng ◽  
Jia Zhao ◽  
Bao Zhong Ke ◽  
Qi Qi Wu
Keyword(s):  
Frequency Band ◽  
Printed Circuit Board ◽  
Coplanar Waveguide ◽  
Impedance Matching ◽  
Ground Plane ◽  
Ultra Wideband ◽  
Circuit Board ◽  
Dual Band ◽  
Uwb Antenna ◽  
Compact Design

An ultra-wideband (UWB) printed antenna with dual band-notched characteristic is presented in this paper. The proposed antenna is composed of a semi-circular patch fed by a tapered coplanar waveguide (CPW) and an unclosed ground plane, which are printed onto the same side of a FR4 printed circuit board (PCB) with an overall size of 30 mm × 30 mm × 1.5 mm. By embedding a simple arc-shaped slot in the patch and adding a T-shaped strip on the top of the patch, two notched frequency bands for rejection of WiMAX and WLAN system can be realized. The characteristics of the proposed antenna are investigated by using the software HFSS and validated experimentally, both simulated and measured results show that the proposed antenna prototype achieves good impedance matching over an frequency band from 2.1011.40 GHz for VSWR2 with two notched bands over the frequency range of 5-5.95 GHz and 3.1-3.9 GHz. Furthermore, a relatively stable gain and suitable radiation patterns are also achieved in both lower and upper UWB frequency band.

scholarly journals Dual Band-Notched UWB Antenna based on Electromagnetic Band Gap Structures

2011 ◽  
Vol 1 (2) ◽  
Author(s):  
Son Trinh-Van ◽  
Chien Dao-Ngoc
Keyword(s):  
Band Gap ◽  
Frequency Band ◽  
Stop Band ◽  
Ultra Wideband ◽  
Dual Band ◽  
Uwb Antenna ◽  
Directional Characteristic ◽  
Electromagnetic Band Gap ◽  
Final Design ◽  
Good Agreement

A printed ultra-wideband (UWB) antenna with dual band-notched characteristics based on electromagnetic band-gap (EBG) structure is presented. To produce dual-band rejection, the microstrip feed line is placed between two pairs of EBG cells which are designed to act as stop-band filters. The final design of the antenna satisfies the voltage standing wave ratio (VSWR) requirement of less than 2.0 in a bandwidth spreading from 2.275 GHz to 10.835 GHz, which entirely covers UWB frequency band allocated from 3.1 to 10.6 GHz. The antenna also shows dual band-notched performance at the frequency bands of 3.375 − 3.875 GHz for WiMAX and 5.325 − 6.150 GHz for WLAN, while possessing omni-directional characteristic in the whole operating frequency band. The results show good agreement between simulation and measurement.

scholarly journals Quadruple Band-Notched Compact Monopole UWB Antenna for Wireless Applications

2021 ◽  
Vol 21 (5) ◽  
pp. 406-416
Author(s):  
Ch. Ramakrishna ◽  
G. A. E. Satish Kumar ◽  
P. Chandra Sekhar Reddy
Keyword(s):  
Frequency Band ◽  
Communication Systems ◽  
Satellite Communication ◽  
Ultra Wideband ◽  
Ring Resonators ◽  
Impedance Bandwidth ◽  
Uwb Antenna ◽  
Radiating Element ◽  
X Band ◽  
Measured Impedance

A printed quadruple band-notched ultra-wideband (UWB) antenna characteristic is presented. The designed UWB antenna has a size of 32 mm × 30 mm × 1.6 mm and covers an impedance bandwidth off 2.9–14.5 GHz for the entire frequency band. The entire frequency band maintains voltage standing wave ratio (VSWR) <2, except at WiMAX (3.1–3.6 GHz), WLAN (4.92–6.12 GHz), downlink of X-band for satellite communication systems (7.5–8.4 GHz), and X-band (10.2–11 GHz). By inserting a pair of L-shaped slots into the radiating element, a H-shaped resonator and rectangular split-ring resonators are closely arranged to the microstrip feed-line, alongside the measured impedance bandwidth of 129%. The fabricated antenna radiation pattern and return loss is presented.

scholarly journals PENGEMBANGAN ADOPSI INOVASI MELALUI JARINGAN KOMUNIKASI

2019 ◽  
Vol 44 (1) ◽  
pp. 83
Author(s):  
Ellyta Ellyta ◽  
Uray Mustakim ◽  
Rahmatullah Rizieq
Keyword(s):  
Communication Network ◽  
Communication Networks ◽  
Innovation Adoption ◽  
The Other ◽  
West Kalimantan ◽  
Relationship Analysis ◽  
Citrus Production ◽  
Farmer Groups ◽  
Network Patterns

Acceleration of innovation adoption can be done if the communication network patterns in farmer groups are known. The research was conducted at The Citrus Production Center in Sambas District, West Kalimantan. Farmer group samples were taken 15 groups randomly while farmer sampling was done with the Representative Sample of Intact System. The structure and role of farmers in communication networks were analyzed by communication network analysis from Rogers and Kincaid and relationship analysis with Rank Spearman method. The results showed the structure of communication, in terms of the level of connectedness of farmers in the group was low while the openness of farmer groups was high. The higher the involvement and openness of farmers in the communication network, the better behavior of farmers in marketing. In addition, the pattern of communication networks that are formed is the pattern of wheels, namely the role of leaders in groups (star) plays an important role in the distribution of information in farmer groups. The other results were efforts to overcome the marketing problems that occur in farmers, namely by delaying the harvest and delay selling.

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