scholarly journals Experimental Investigation of a Planar Antenna with Band Rejection Features for Ultra-Wide Band (UWB) Wireless Networks

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Muhammad Irshad Khan ◽  
Muhammad Irfan Khattak ◽  
Gunawan Witjaksono ◽  
Zaka Ullah Barki ◽  
Sadiq Ullah ◽  
...  
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Area Network ◽  
Personal Area Networks ◽  
Frequency Range ◽  
Antenna Measurement ◽  
International Telecommunication Union ◽  
Narrowband Channels

The Federal Communication Commission (FCC) has authorized the use of unlicensed ultra-wide band (UWB) spectrum in the frequency range from 3.1 to 10.6 GHz for a variety of short-range applications, including wireless monitors and printers, camcorders, radar imaging, and personal area networks (PANS). However, the interference between coexisting narrowband channels and UWB signals that share the same spectrum should be avoided by designing UWB antennas with band notch characteristics. This work presents a printed monopole antenna (PMA) with slots of different shapes etched in the radiating element to obtain band rejection in the three coexisting communication bands, i.e., Worldwide Interoperability for Microwave Access (WiMAX), Wireless Local Area Network (WLAN), and International Telecommunication Union (ITU). A rectangular slot is etched to reject the WiMAX band (3.01-3.68 GHz), an upturned C slot stops the WLAN band (5.18-5.73 GHz) while an inverted-U slot halts the ITU frequency band (7.7-8.5 GHz). The proposed antenna occupies a volume of 32 x 30 x 1.6 mm3 and it radiates efficiently (>90%) with a satisfactory gain (>1.95 dBi) in the unnotched UWB frequency range. The simulations are performed in High Frequency System Simulator (HFSS), while the measurements are conducted in antenna measurement facility and found in close agreement with the former.

scholarly journals A Compact Antenna with WiMAX and WLAN bands notched for UWB applications

2018 ◽  
Vol 7 (2.7) ◽  
pp. 489
Author(s):  
K V.Prashanth ◽  
Bonthu Umamaheswari ◽  
G Akhil ◽  
G Vamsi krishna ◽  
M Venkata Sai chandu
Keyword(s):  
Satellite Communication ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Area Network ◽  
Uwb Antenna ◽  
Band Frequency ◽  
Compact Antenna ◽  
Uwb Applications

A Compact antenna with WiMAX and WLAN bands notched for ultra wide band (UWB) applications is proposed. The proposed antenna is designed for the planar ultra wide band (UWB) antenna and ultra wide band (UWB) antenna having two band rejections. The proposed antenna overall size is 30mm x 40mm x 1.6mm. The antenna consists of a rectangular patch on the top of FR4 substrate with 50ohm feed with defected ground structure. This patch consists of one round cut at each corner having radius 1.575mm. The simulated band width with return loss (RL) >=10db is 3.1 to 11.2 GHz with VSWR<2. It works for the applications of WiMAX system at 3.5GHz (3.3 – 3.7 GHz), C-band satellite communication (3.7 - 4.2 GHz), wireless local area network (WLAN) system at 5GHz (5.15 – 5.825 GHz), X-band satellite communication system (7.25 - 7.75 GHz). The ultra wide band frequency range for these wireless systems causes interference. To diminish obstruction, the band rejection is made. WiMAX and WLAN groups are dismissed by designing slots on the patch. This antenna has an incredible pick up in the Gain while a sharp drop in the rejected groups. 

CCS: A Railway Corridor Control System Utilizing Ultra Wideband Radio Technology

Joint Rail ◽  
2004 ◽  
Author(s):  
Paul A. Flaherty
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Linear Chain ◽  
Wide Band ◽  
Local Area ◽  
Ultra Wideband ◽  
Area Network ◽  
Radio Technology ◽  
A Chain ◽  
Uwb Radio

Ultra Wide Band (UWB) radio is a unique technology which combines a megabit wireless local area network with a centimeter-resolution radiolocation (RADAR) capability over distances less than 100 meters. A linear chain of UWB nodes can be used to create a hop-by-hop data transmission network, which also forms a RADAR “corridor” along the chain. By co-locating such a chain of nodes along a railroad right-of-way, precise information on the location and velocity of trains could be distributed throughout the corridor. In addition, the radar corridor would detect the introduction of track obstacles such as rocks, people, and automobiles, as well as shifted loads and other high-wide train defects. Finally, the network of nodes would enable off-train communications with payload sensors, locomotive computers, and could also provide wireless connectivity for passenger service.

scholarly journals Design of A Dual-Wide Band BPF Utilizing Parallel Coupled Microstrip Lines and A Centered Arrow-Shaped Resonator

2020 ◽  
Vol 23 (2) ◽  
pp. 153-158
Author(s):  
Ahmed Lateef Khudaraham ◽  
Dhirgham Kamal Naji
Keyword(s):  
Communication Systems ◽  
Satellite Communication ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Wide Band ◽  
Local Area ◽  
Area Network ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Strip Lines

This paper presents a dual wide-band band pass filter (DWB-BPF) by using two parallel, symmetrical micro-strip lines loaded by a centered resonator, consisting of a T- and a triangle-shaped geometry, attached at the lower and upper ends, respectively. The filter reveals good performance and both the passbands can be independently controlled by adjusting specific parts of the filter. The proposed BPF is simulated by using CST microwave studio package and the simulated result is verified experimentally with good agreement between the two results.  The fabricated prototype BPF demonstrates two passbands located at 2.3 GHz and 6.35 GHz center frequencies with 39% and 23.6% of 3-dB fractional bandwidth (FBW), respectively and a good insertion and return losses. The designed BPF can be targeted for wireless local area network (WLAN), WIFI and satellite communication systems.

A multi-band planar antenna for biomedical applications

Frequenz ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Kim Ho Yeap ◽  
Eileen Mei Foong Tan ◽  
Takefumi Hiraguri ◽  
Koon Chun Lai ◽  
Kazuhiro Hirasawa
Keyword(s):  
Biomedical Applications ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Wireless Body Area Network ◽  
Wide Band ◽  
Local Area ◽  
Base Station ◽  
Planar Antenna ◽  
Area Network ◽  
Ism Band

Abstract We present the design of a compact tri-band adhesive planar antenna which operates as a gateway for biomedical applications. Operating in the Industrial, Scientific and Medical (ISM) band (2.4–2.5 GHz), the Institute of Electrical and Electronics Engineers (IEEE) 802.15.6 Wireless Body Area Network Ultra-Wide Band (WBAN UWB) (3.1–10.6 GHz) and the IEEE 802.11 Wireless Local Area Network or WLAN (WLAN) band (5.15–5.725 GHz), the antenna is useful in the context of body-signal monitoring. The ISM band is used for in-body communication with the implanted medical devices, whereas the WBAN and WLAN bands are for off-body communication with the base station and central medical server, respectively. We have designed our antenna to operate at 2.34/3.20/4.98 GHz. The simulation results show that the antenna has 10 dB bandwidths of 420 MHz (2.07–2.49 GHz), 90 MHz (3.16–3.25 GHz), and 460 MHz (4.76–5.22 GHz) to cover the ISM, WBAN, and WLAN bands, respectively. The proposed antenna is printed on a flexible Rogers RT/duroid 5880 epoxy substrate and it occupies a compact volume of 24 × 24 × 0.787 mm. The designed antenna is simulated using HFSS and the fabricated antenna is experimentally validated by adhering it to a human skin. The simulated and measured performance of the antenna confirms its omnidirectional radiation patterns and high return losses at the three resonant bands.

Super wideband printed monopole antenna for ultra wideband applications

2015 ◽  
Vol 9 (1) ◽  
pp. 133-141 ◽  
Author(s):  
Sandeep Kumar Palaniswamy ◽  
Malathi Kanagasabai ◽  
Shrivastav Arun Kumar ◽  
M. Gulam Nabi Alsath ◽  
Sangeetha Velan ◽  
...  
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Ground Plane ◽  
Wide Band ◽  
Local Area ◽  
Monopole Antenna ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Area Network ◽  
Compact Size

This paper presents the design, testing, and analysis of a clover structured monopole antenna for super wideband applications. The proposed antenna has a wide impedance bandwidth (−10 dB bandwidth) from 1.9 GHz to frequency over 30 GHz. The clover shaped antenna with a compact size of 50 mm × 45 mm is designed and fabricated on an FR4 substrate with a thickness of 1.6 mm. Parametric study has been performed by varying the parameters of the clover to obtain an optimum wide band characteristics. Furthermore, the prototype introduces a method of achieving super wide bandwidth by deploying fusion of elliptical patch geometries (clover shaped) with a semi elliptical ground plane, loaded with a V-cut at the ground. The proposed antenna has a 14 dB bandwidth from 5.9 to 13.1 GHz, which is suitable for ultra wideband (UWB) outdoor propagation. The prototype is experimentally validated for frequencies within and greater than UWB. Transfer function, impulse response, and group delay has been plotted in order to address the time domain characteristics of the proposed antenna with fidelity factor values. The possible applications cover wireless local area network, C-band, Ku-band, K-band operations, Worldwide Interoperability for Microwave Access, and Wireless USB.

scholarly journals Design of UWB Antenna With Multi slot for Wireless Communication

2018 ◽  
Vol 7 (2.7) ◽  
pp. 507
Author(s):  
K V.Prashanth ◽  
N Sai Venkatesh ◽  
B Umamaheswari ◽  
M Mukesh ◽  
G Praneeth ◽  
...  
Keyword(s):  
Communication System ◽  
Satellite Communication ◽  
Local Area Network ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Area Network ◽  
Uwb Antenna ◽  
Band Frequency ◽  
Satellite Communication System ◽  
X Band

A Compact dual slot ultra-wide band (UWB) Antenna for WLAN and X-Band applications is proposed. The projected antenna is designed for the planar ultra-wide band (UWB) antenna and ultra-wide band (UWB) with two band dismissals. The proposed antenna overall size is 30x40x1.6. The antenna comprises of Rectangular patch imprinted on the Flame Resistant (FR4) substrate with 50Ω input impedance. FR-4 is a composite material made out of fiberglass fabric woven with an epoxy pitch cover that is fire safe (self-dousing). "FR" implies fire resistant, and means that the material meets the standard. This patch consists of dual slot one for WLAN and one for X-band Satellite Communication System. The antenna intended with return loss (RL) >= 10db and frequency ranges between 3.1 to 10.6 GHz with VSWR<2. The antenna works for the applications of wireless local area network (WLAN) system (5.15 – 5.825 GHz), X-band downlink (7.25 - 7.75). The ultra-wide band frequency range for these wireless systems causes interference. To reduce the interference, band notching is done. The WLAN and X-Band satellite communication system bands are forbidden by inserting slots in the patch. The proposed antenna is having high gain at the pass bands while a sharp drop at the forbidden bands.  

CPW-fed SGF-TSRR antenna for multiband applications

2017 ◽  
Vol 9 (9) ◽  
pp. 1871-1876 ◽  
Author(s):  
C. Elavarasi ◽  
T. Shanmuganantham
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Split Ring Resonator ◽  
Superior Performance ◽  
Area Network ◽  
Split Ring ◽  
International Telecommunication Union ◽  
International Telecommunication ◽  
Metamaterial Antenna

In this paper, a solid co-planar waveguide-fed fractal metamaterial antenna is offered. The proposed design consists of Sierpinski gasket iterations and a complementary triangular split ring resonator (CTSRR) loaded underneath the substrate, which is accountable for pull off multiband uniqueness and resolve good impedance identical. In sketch to hassle multiresonant frequency band facet, these CTSRR are entrenched reverse side of the substrate. The anticipated antenna with a dense dimension of 12 × 14 × 1.6 mm3 is fabricated and tested. The testing result designates that the projected design has −10 dB of 5.72, 14.3, and 16.06 GHz, respectively, and covers 5.72 GHz wireless local area network, 14.3 GHz fixed satellite, and 16.06 GHz International Telecommunication Union (ITU) band. It has fine emission uniqueness for jointly E-plane and H-plane in all the preferred occurrence bands and produce superior performance compared with the offered antenna intend in the prose. The loaded CTSRR construction recital is validated all the way during negative permeability pulling out and assorted parametric study.

Study on miniaturization of planar monopole antenna with parabolic edge shape with a notch slot

2016 ◽  
Vol 9 (3) ◽  
pp. 607-611 ◽  
Author(s):  
Tae-Soon Chang ◽  
Sang-Won Kang
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Wide Band ◽  
Local Area ◽  
Dielectric Substrate ◽  
Dipole Antenna ◽  
Monopole Antenna ◽  
Area Network ◽  
Miniaturized Antenna ◽  
Planar Monopole Antenna

This paper proposes a planar monopole antenna with a parabolic edge shape. This antenna, which has notch characteristics in the wireless local area network (WLAN) band, can be miniaturized. To obtain the notch characteristics in the WLAN band, a slot with a parabolic edge shape identical to that of the monopole structure was implemented. Because the planar monopole antenna with a parabolic edge shape possesses characteristics similar to those in self-complementary structure conditions, it can be miniaturized by reducing the antenna components at the same proportion. For the antenna fabrication, an FR4 dielectric substrate with a dielectric constant of 4.7 was used. The size of the miniaturized antenna that satisfies the ultra-wide band requirement was 15.6 × 18.6 mm2, and the 10-dB band was 3.013–12.515 GHz. At each frequency, the radiation pattern was similar to that of a dipole antenna.

scholarly journals Hexagonal Printed Monopole Antenna with Triple Stop Bands for UWB Application

2019 ◽  
Vol 38 (2) ◽  
pp. 335-340 ◽  
Author(s):  
Muhammad Irfan Khattak ◽  
Muhammad Irshad Khan ◽  
Zaka Ullah ◽  
Gulzar Ahmad ◽  
Amad Khan
Keyword(s):  
Electromagnetic Interference ◽  
Communication Systems ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Monopole Antenna ◽  
Ultra Wideband ◽  
Area Network ◽  
International Telecommunication Union ◽  
Printed Monopole Antenna ◽  
Printed Monopole

Inherently UWB (Ultra Wideband) communication systems comes with interference problem with some if the existing narrowband communication systems. These bands are stopped with the help of band-stop filter in order to reduce electromagnetic interference However, the complexity and limitations are increased due to these filters, hence this solution is turned down in those applications where design complications and complexity is of concern. Introducing various slots of specific shapes and exact dimensions however, have solved this issue for the researchers around the world. This paper presents a hexagonal PMA (Printed Monopole Antenna) with triple stop bands. The antenna is used for UWB application. The antenna is stopped the WiMAX (Worldwide Interoperability for Microwave Access), WLAN (Wireless Local Area Network) and ITU (International Telecommunication Union) bands. The antenna dimensions are 30x28x16 mm3. FR4 is used between ground and radiating patch with relative permittivity of 4.4. The VSWR (Voltage Standing Wave Ratio) is less than 2 between 3-11 GHz except WiMAX (3.1-3.7 GHz), WLAN (5.1-5.8 GHz) and the ITU frequency band (7.95-8.4 GHz). The antenna is design in CST software.

scholarly journals Dual Band Fractal Antenna Design for Wireless Application

2016 ◽  
Vol 5 (3) ◽  
pp. 101-108 ◽  
Author(s):  
Bashir Olaniyi Sadiq
Keyword(s):  
Return Loss ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Wide Band ◽  
Local Area ◽  
Dual Band ◽  
Area Network ◽  
Compact Antenna ◽  
Microstrip Patch ◽  
Wireless Application

The objective of this paper was to design and analyze a dual wide band compact antenna for wireless application. Microstrip patch antenna limitation was overcome by using fractal geometry. The proposed antenna was designed with a radius of 15mm on a FR4 lossy substrate with relative permittivity of 4.4 and loss factor of 0.025. Measurement result showed that the antenna has a dual band of operation with bandwidth for return loss below -10dB of 1.84GHz (2.2GHz-4.07GHz) and 2GHz (6GHz-8GHz) which can be applied to wireless local area network (WLAN) and Ultra wide band applications.

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