Design of compact multi‐band meander‐line antenna for global positioning system/wireless local area network/worldwide interoperability for microwave access band applications in laptops/tablets

2016 ◽  
Vol 10 (15) ◽  
pp. 1618-1624 ◽  
Author(s):  
Pallavi Bartwal ◽  
Anil Kumar Gautam ◽  
Anil Kumar Singh ◽  
Binod Kumar Kanaujia ◽  
Karumudi Rambabu
Keyword(s):  
Global Positioning System ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Positioning System ◽  
Global Positioning ◽  
Meander Line ◽  
Multi Band

Tri-band compact ACS-fed meander-line antenna for wireless communications

2017 ◽  
Vol 9 (9) ◽  
pp. 1895-1903 ◽  
Author(s):  
Ayman Ayd R. Saad ◽  
Ahmed A. Ibrahim ◽  
Osama M. Haraz ◽  
Ayman Elboushi
Keyword(s):  
Wireless Communications ◽  
Global Positioning System ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Compact Size ◽  
Global Positioning ◽  
Parametric Studies ◽  
Meander Line

In this paper, a compact tri-band asymmetric coplanar strip (ACS)-fed meander-line antenna for wireless communications is proposed. Two inverted-L-shaped resonators are added to a simple meandered radiator for standard tri-band operation. Parametric studies indicate that operating frequencies of the proposed antenna are determined by the dimensions of the two inverted-L-shaped resonators. The measured results show that the proposed antenna can achieve three frequency bands; i.e. 1.48–1.63, 2.25–2.48, and 4.22–6.0 GHz. These bands can successfully cover the global positioning system L1, wireless local area network (WLAN), and HIPERLAN/2 operation bands, respectively. The proposed antenna exhibits good radiation patterns with reasonable gain and high radiation efficiency across the operating bands. In addition, the proposed antenna has compact size and simple feeding scheme, which make it suitable to be integrated within the portable device for wireless communications.

Multi-Band Rectangular Zig-Zag-Shaped Microstrip Patch Antenna for Wireless Applications

2020 ◽  
pp. 66-86
Author(s):  
Pranay Yadav ◽  
Bharat Bhushan Khare ◽  
Sudesh Gupta ◽  
Yash Kumar Kshirsagar ◽  
Swati Jain
Keyword(s):  
Patch Antenna ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Research Work ◽  
Local Area ◽  
Area Network ◽  
Fifth Generation ◽  
Communication Devices ◽  
Cut Set ◽  
Multi Band

In the era of fifth generation communication system, multi-band patch antenna is the key element of this system. Most of the wireless communication devices work in the range of 1 to 6 GHz such as wireless fidelity (Wi-Fi), Wi-Max, and wireless local area network. In this research work, a modified zig-zag-shaped multiband patch antenna with cross-cut set that covers 1 to 6 GHz range is designed. Proposed patch antenna shows five different bands at different resonant frequencies 1.4, 2.3, 2.5, 3.42, and 4.16 all in GHz. The proposed zig-zag-shaped patch antenna also calculates the radiation pattern and specific absorption rate (SAR).

Design of a Quad-Band Monopole Antenna with Independent Frequency Control

2019 ◽  
Vol 28 (06) ◽  
pp. 1950101
Author(s):  
Wang Ren ◽  
Peng-Hong Wang
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Frequency Control ◽  
Coplanar Waveguide ◽  
Ground Plane ◽  
Local Area ◽  
Monopole Antenna ◽  
Ring Resonators ◽  
Area Network ◽  
Global Positioning

A coplanar waveguide (CPW)-fed I-shaped monopole antenna with independent frequency control characteristic is presented for simultaneously satisfying the global positioning system (GPS), wireless local area network (WLAN), and worldwide interoperability for microwave access (WiMAX) applications. It is printed on an FR4 substrate with a single-layered metallic structure and the overall dimensions are [Formula: see text][Formula: see text]mm3. The proposed antenna consists of an I-shaped monopole, a pair of split-ring resonators (SRRs), and a coplanar ground plane. The unique advantage of this study is that the four frequency bands are generated individually by different radiating elements. That is, each of them can be controlled independently with little interference from others, which brings added convenience to the antenna design, optimization and debugging processes. Simulated and measured results both demonstrate that it can cover the 1.575[Formula: see text]GHz GPS (1.57–1.59[Formula: see text]GHz); 2.4/5.2/5.8[Formula: see text]GHz WLAN (2.4–2.485, 5.15–5.35 and 5.725–5.825[Formula: see text]GHz) and 3.5/5.5[Formula: see text]GHz WiMAX (3.40–3.60 and 5.25–5.85[Formula: see text]GHz) applications with satisfactory radiation patterns and acceptable gains.

Compact multi-band printed antenna with multi-triangular ground plane for WLAN/WiMAX/RFID applications

2014 ◽  
Vol 8 (2) ◽  
pp. 277-281 ◽  
Author(s):  
Tang Yang ◽  
Gao Wen ◽  
Gao Jinsong ◽  
Feng Xiaoguo
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Coplanar Waveguide ◽  
Ground Plane ◽  
Local Area ◽  
Impedance Bandwidth ◽  
Area Network ◽  
Printed Antenna ◽  
Rfid Applications ◽  
Multi Band

In this paper a novel compact multi-band printed coplanar waveguide (CPW)-feed antenna for wireless local area network (WLAN)/WiMAX/RFID applications is proposed. The proposed antenna is composed of a multi-triangular structure as metal ground plane and the radiation element with four different branches, both of the structures are printed on the same side of a substrate and the antenna is fed by a CPW. By carefully tuning the locations and the sizes of these four branches, the antenna can yield three different resonating frequencies to cover the desired bands for WLAN/WiMAX/RFID applications. The simulated and measured results demonstrate that the proposed antenna has the impedance bandwidth (for return loss less than −10 dB) of 700 MHz (2.2−2.9 GHz), 540 MHz (3.16–3.7 GHz), and 850 MHz (5.05–5.9 GHz), respectively, which can cover the WLAN 2.4/5.8 GHz bands, the WiMAX 2.5/3.5 GHz bands, and the RFID 2.45/5.8 GHz bands.

scholarly journals Multiple BSSs Association Based Spatial Clustering Group Access Protocol for Next Generation WLAN

2019 ◽  
Vol 37 (4) ◽  
pp. 809-815
Author(s):  
Yong Li ◽  
Bo Li ◽  
Mao Yang ◽  
Zhongjiang Yan
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Spatial Clustering ◽  
Spatial Location ◽  
Local Area ◽  
Area Network ◽  
Next Generation ◽  
Coverage Area ◽  
Collaboration Technology ◽  
Multi Band

The next generation Wireless Local Area Network (WLAN) IEEE 802.11be regards Extremely High Throughput (EHT) as its core technology goal, among which multi-band capability and AP cooperation technology are regarded as its key technologies. However, the existing research on Orthogonal Frequency Division Multiple Access (OFDMA) protocol does not consider the multi-band capability and AP collaboration technology of IEEE 802.11be, so the improvement of system performance is limited and does not meet the EHT requirement. Especially when the nodes in overlapping coverage area have a large number of traffic, it is more important to improve the throughput of nodes in overlapping coverage area. In order to improve the throughput of nodes in overlapping coverage area, this paper proposes a spatial clustering group OFDMA protocol associated with multiple Basic Service Sets (BSSs). The protocol allows nodes in overlapping coverage area to be associated with multiple BSSs at the same time by using multi-band capability, that is, multi-association; Using AP collaboration technology allows nodes to perform parallel backoff with channels on multiple BSSs to improve access efficiency. Nodes in the overlapping coverage area are associated with the channels of multiple BSSs for parallel backoff. Node completed backoff and successfully accessed triggers a spatial clustering group (SCG) with close to its spatial location. OFDMA mode is used by SCG to access and transmit, thus increasing the access opportunities of nodes within overlapping coverage, thereby improving the throughput. The simulation results show that using the SCG-OFDMA protocol proposed in this paper associated with two BSSs, its throughput of nodes within overlapping coverage can achieve 353.41% higher than the IEEE 802.11ax protocol and 558.33% higher than the OMAX protocol respectively.

A novel ACPW-fed quad-band hybrid antenna for wireless applications

2018 ◽  
Vol 10 (4) ◽  
pp. 460-468 ◽  
Author(s):  
Wang Ren ◽  
Li-Juan Zhang ◽  
Shu-Wei Hu
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Coplanar Waveguide ◽  
Local Area ◽  
Monopole Antenna ◽  
Area Network ◽  
Wireless Applications ◽  
Left Handed ◽  
Second Mode ◽  
Global Positioning

This paper presents a novel asymmetric coplanar waveguide-fed quad-band hybrid antenna for wireless applications. The proposed hybrid antenna combines a conventional monopole antenna and a zeroth-order resonator antenna to perform a dual-mode operation. The first mode is generated by a slotted monopole antenna, supporting the two higher resonances at about 3.5 and 5.8 GHz. The second mode is supported by loading a composite right-/left-handed transmission line unit cell near the slotted monopole, contributing to the two lower resonances at about 1.6 and 2.5 GHz. It is printed on an FR4 substrate with the overall dimensions of 40 mm × 24 mm × 1.6 mm. Experimental results demonstrate that it can cover the global positioning system (1.57–1.59 GHz), wireless local area network (2.4–2.485, 5.15–5.35, and 5.725–5.825 GHz), and worldwide interoperability for microwave access (2.5–2.69, 3.3–3.7, and 5.25–5.85 GHz) applications with monopole-like radiation patterns and acceptable gains.

Survey of WLAN Fingerprinting Positioning System

2013 ◽  
Vol 380-384 ◽  
pp. 2499-2505 ◽  
Author(s):  
Ping Chen ◽  
Yu Bin Xu ◽  
Liang Chen ◽  
Zhi An Deng
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Optimization Techniques ◽  
Location Estimation ◽  
Location Based Services ◽  
Area Network ◽  
Positioning System ◽  
Indoor Location ◽  
Location Clustering

The increasing demand for indoor location based services has motivated the development of various indoor positioning methods. Among them, fingerprinting based positioning system in wireless local area network (WLAN) has been paid more attentions due to its cost effectiveness and relatively high accuracy. This paper investigates various optimization techniques for WLAN fingerprinting positioning comprehensively. The fingerprinting positioning comprises five major steps: Radio Map construction, location clustering, feature extraction, location estimation and tracking. The optimization techniques in these five steps are discussed and finally the future trends are presented.

scholarly journals Ultrawideband Vivaldi Antenna for DVB-T, WLAN, and WiMAX Applications

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Dalia M. Elsheakh ◽  
Esmat A. Abdallah
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Pin Diode ◽  
Area Network ◽  
Ieee 802.11B ◽  
High Frequency Structure Simulator ◽  
Vivaldi Antenna ◽  
Meander Line ◽  
Good Agreement

Compact Vivaldi patch antenna with a parasitic meander line is presented in this paper. A PIN diode switch is used to connect and disconnect ultrahigh frequency band (UHF) with ultrawide bandwidth (UWB). The operating frequencies can be switched among different services, depending on the switching states (ON/OFF) to add the lower band when required. This antenna is suitable for portable DVB-T which extended from 450 MHz to 850 MHz receiver applications and the WLAN (Wireless Local Area Network) IEEE 802.11b,g (5.1–5.8) GHz frequency bands and WiMAX band (3.3–3.8) GHz. The measured reflection coefficient of the proposed antenna is compared with the simulated one; good agreement is observed. Also, simulated radiation pattern of the antenna is presented. All simulations are carried out using the EM commercial simulator, high frequency structure simulator (HFSS) ver.13.

scholarly journals A Miniaturized Triple Band Monopole Antenna for WLAN and WiMAX Applications

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Yingsong Li ◽  
Wenhua Yu
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Monopole Antenna ◽  
Impedance Bandwidth ◽  
Area Network ◽  
Radiation Patterns ◽  
Resonance Frequencies ◽  
Meander Line ◽  
Triple Band

A miniaturized triple band monopole antenna with a small size is proposed and its performance is investigated both numerically and experimentally for worldwide interoperability for microwave access (WiMAX) and wireless local area network (WLAN) applications. The three resonance frequencies are realized by using a toothbrush-shaped patch (TSP), a meander line (ML), and an inverted U-shaped patch (IUSP). The center frequencies of the triple bands can be controlled by adjusting the dimensions of the TSP, ML, and IUSP. Simulated and measured results are presented to demonstrate that the proposed triband monopole antenna with a good impedance bandwidth and omnidirectional radiation patterns is well suitable for WLAN and WiMAX communication applications.

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