Planar suspended line technique based UWB-MIMO antenna having dual-band notching characteristics

2020 ◽  
pp. 1-10
Author(s):  
Kirti Vyas ◽  
Rajendra Prasad Yadav
Keyword(s):  
Satellite Communication ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Multiple Input Multiple Output ◽  
Local Area ◽  
Ultra Wideband ◽  
Dual Band ◽  
Electrical Performance ◽  
Impedance Bandwidth ◽  
Area Network

Abstract This communication reports significant isolation improvement utilizing planar suspended line (PSL) technique in ultra wideband (UWB) antenna for Multiple Input Multiple Output (MIMO) application. The antenna exhibits dual-band notched characteristic in Wireless Local Area Network (WLAN) band covering 5.45–5.85 GHz range; and in 7.15–7.95 GHz range for X-band downlink operations in satellite communication. Band-notching characteristics have been obtained by employing a single Elliptical Split Ring Resonator (ESSR) placed adjacent to each microstrip feed line of the radiating element and duo of “Y”-shaped strips employed within the circular ring of individual radiating elements. Two elements antenna occupy a compact space of 20 × 36 × 1.6 mm3 exhibiting huge measured impedance bandwidth (S11/S22 < −10 dB) covering 3.1–11.5 GHz and significant isolation of >21 dB in the almost entire band of operation. The electrical performance of antennas has been analyzed in terms of various MIMO parameters. Measured results demonstrate good accord with simulated results proving the competency of proposed antenna in high-density package systems and massive MIMO applications.

A compact band-notched antenna with high isolation for UWB MIMO applications

2020 ◽  
pp. 1-7
Author(s):  
Issmat Shah Masoodi ◽  
Insha Ishteyaq ◽  
Khalid Muzaffar ◽  
M. Idrees Magray
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Ground Plane ◽  
Multiple Input Multiple Output ◽  
Local Area ◽  
Antenna System ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Area Network ◽  
Antenna Module

Abstract A compact antenna module with a single band notch at wireless local area network (WLAN) (5.725–5.825 GHz) for ultra-wideband (UWB) multiple input multiple output (MIMO) applications is proposed. Proposed antenna which acquires size of 0.299 λ × 0.413 λ × 0.005 λ mm3 at 3.1 GHz consists of two symmetrical radiators placed side by side on global merchandise link (GML) 1000 substrate (εr = 3.2, tan δ = 0.004). Isolation between the antenna elements is >18 dB in the whole UWB band, which is achieved by introducing the vertical stub and H-slot between the monopole radiators in the ground plane. The simulated and measured results of the antenna system are in good agreement. The proposed antenna covers entire UWB with impedance bandwidth (|S11| < −15 dB) from 3.1 to 11 GHz except at WLAN notched band. The designed antenna module bears low envelope correlation coefficient and minimal multiplexing efficiency hence fulfilling criteria suitable for various wireless MIMO applications.

Design of a Compact Dual Band-Notched Ultra-Wideband Diversity Antenna for MIMO Applications

2014 ◽  
Vol 711 ◽  
pp. 316-319
Author(s):  
Bao Jun Song ◽  
Hui Zhao ◽  
Tong Xu ◽  
Qin Zhang
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Multiple Input Multiple Output ◽  
Ultra Wideband ◽  
Ring Resonators ◽  
Dual Band ◽  
Impedance Bandwidth ◽  
Area Network ◽  
Multiple Input ◽  
Diversity Antenna

A compact dual band-notched ultra-wideband (UWB) diversity antenna for multiple-input-multiple-output (MIMO) application is presented in this letter. The antenna consists of two tapered microstrip feeding lines and two semi-circle patches as the radiators. The C-band and wireless local area network (WLAN) for IEEE 802.11a band-notched function is achieved by etching four split-ring resonators (SRR) in the patches. The simulated and measured results show that the proposed antenna has a broadband impedance bandwidth covering the UWB band with definition of |S11|<-10dB and a dual band-notched function at C-band and WLAN band. As a multiple-input antenna, a good isolation |S21| between two ports better than -15 dB across the UWB is also achieved. The radiation patterns, peak gain, and envelope correlation coefficient are also measured and discussed.

Design of dual band-notched lamp-shaped antenna with UWB characteristics

2015 ◽  
Vol 9 (2) ◽  
pp. 395-402 ◽  
Author(s):  
Swati Yadav ◽  
Anil Kumar Gautam ◽  
Binod Kumar Kanaujia
Keyword(s):  
Electromagnetic Interference ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Ground Plane ◽  
Dual Band ◽  
Electrical Performance ◽  
Impedance Bandwidth ◽  
Area Network ◽  
Impedance Mismatch ◽  
Rectangular Slot

To restrict electromagnetic interference at WiMAX (3.3–3.7 GHz) and wireless local area network (WLAN) (5.15–5.825 GHz) bands operating within ultra wide bandwidth (UWB) band, a novel design of lamp-shaped UWB microstrip antenna with dual band-notched characteristics is presented. The proposed antenna is composed of a lamp-shaped radiating patch with two rectangular ground planes on both the sides of the radiator with the gap of 0.57 mm. To improve impedance mismatch at middle frequencies, two triangular strips one at each of the ground plane are added; whereas a rectangular slot is etched in the radiating patch to remove impedance mismatch at higher frequencies of the UWB band. Furthermore, an L-shaped slot in the radiator and two L-shaped slots in the ground plane are used to restrict electromagnetic interference (EMI) at WiMAX and WLAN bands, respectively, without affecting the electrical performance of the UWB antenna. Effects of the key parameters on the frequency range of the notched bands are also investigated. The proposed design shows a measured impedance bandwidth of 12.5 GHz (2.7–14.4 GHz), with the two band-notched bands of 3.0–3.9 and 4.9–5.8 GHz. The antenna is suitable to be integrated within the portable UWB devices without EMI interference at WiMAX and WLAN 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.

An UWB dual polarized microstrip fed L-shape slot antenna

2015 ◽  
Vol 8 (2) ◽  
pp. 363-368 ◽  
Author(s):  
Raghupatruni Venkatsiva Ram Krishna ◽  
Raj Kumar ◽  
Nagendra Kushwaha
Keyword(s):  
Electric Fields ◽  
High Performance ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Ultra Wideband ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Area Network ◽  
Dual Polarized

In this paper, a microstrip fed, L-shape slot antenna for dual polarization is proposed. The two arms of the slot generate electric fields of orthogonal polarizations. By properly sectioning the slot and the feed line, ultra wideband (UWB) behavior is obtained. The measured impedance bandwidth (S11< −10 dB) is more than 8.6 GHz (112%) and 8.2 GHz (104%) for Port 1 and Port 2, respectively. The measured isolation is better than 25 dB over most of the band. The aperture field distribution justifies the dual polarized nature. A modified version which implements a band-notch over 5.1–5.85 GHz wireless local area network (WLAN) band is also presented. With a compact, single substrate design, the antenna can be useful in MIMO transmission systems, polarimetric UWB radar, high performance microwave imaging, and other future wireless communications devices.

Transient response of dual-band-notched ultra-wideband antenna

2014 ◽  
Vol 7 (1) ◽  
pp. 61-67 ◽  
Author(s):  
Jagannath Malik ◽  
Parth C. Kalaria ◽  
Machavaram V. Kartikeyan
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Low Cost ◽  
Coplanar Waveguide ◽  
Local Area ◽  
Ultra Wideband ◽  
Dual Band ◽  
Portable Devices ◽  
Area Network ◽  
Network Systems

In the present study, an ultra-wideband (UWB) antenna has been proposed using coplanar waveguide (CPW) feed with dual-band-notch characteristics. Slot-loaded radiator and U-shaped CPW resonator are used for band rejection at 3.5 and 5–6 GHz respectively to reduce interference with existing World interoperability for microwave access and wireless local area network systems. With an extended operating band (measured at 10 dB return loss) the antenna operates successfully over the entire UWB range (3.1–10.6 GHz) with a form factor of 30 × 20 × 1.524 mm3 on a commercially low-cost FR-4 substrate. Experimental measurement results are presented in support of the simulated results for the proposed antenna for practical application. The antenna has been successfully fabricated and measured, showing broadband matched impedance and good omnidirectional radiation pattern throughout the operating bandwidth. Measured time-domain analysis for both the orientations, i.e. face-to-face and side-by-side, yields excellent performance in the open environment scenario. With fairly good and consistent monopole such as omnidirectional radiation patterns in H-plane and linear transmission responses, the proposed antenna is well suited to be integrated within portable devices.

A DUAL BAND MIMO DIELECTRIC RESONATOR ANTENNA FOR WLAN APPLICATION

2015 ◽  
Vol 77 (10) ◽  
Author(s):  
Nuramirah Mohd Nor ◽  
Mohd Haizal Jamaluddin
Keyword(s):  
Dielectric Resonator ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Multiple Input Multiple Output ◽  
Dual Band ◽  
Impedance Bandwidth ◽  
Area Network ◽  
Dielectric Resonator Antenna ◽  
Multiple Input ◽  
Input Multiple Output

In this paper, a dual band multiple-input-multiple-output dielectric resonator antenna for wireless local area network application is presented. Two identical feeding techniques are used to feed the proposed antenna. The simulated impedance bandwidth for both port are the same which are 6.5% at 2.45 GHz and 3% at 5.2 GHz. The DRA also has an acceptable value of isolation over the operating frequency. The simulated S-parameter and other multiple-input-multiple-output parameters are studied and observed.

scholarly journals A Compact Semi-Circular and Arc-Shaped Slot Antenna for Heterogeneous RF Front-Ends

Electronics ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 1123 ◽  
Author(s):  
Zebiri ◽  
Sayad ◽  
Elfergani ◽  
Iqbal ◽  
Mshwat ◽  
...  
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Personal Communication ◽  
Local Area ◽  
Dual Band ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Area Network ◽  
Antenna Structure ◽  
High Frequency Structure Simulator

In this paper, a new miniaturized compact dual-band microstrip slot antenna is presented. To achieve the dual-band characteristics, two adjunct partial arc-shaped small slots are joined to two main circular slots embedded in the ground of the antenna structure. With a reduced size of 30 × 28.5 × 0.8 mm3, the proposed antenna presents a dual-band characteristic. The design is optimized using a High Frequency Structure Simulator (HFSS) followed by experimental verifications. An impedance bandwidth, for S11≤10 dB, that covers the 1.8 GHz and 2.4 GHz bands is accomplished, which makes the proposed antenna basically suitable for hand-held devices and medical applications. More applications such as digital communication system (DCS) 1.71–1.88 GHz, personal communication services (PCS) 1.85–1.99 GHz, Universal and mobile telecommunications system UMTS 1.92–2.17 GHz, Bluetooth 2.4–2.5 GHz, and Wi-Fi 2.4–2.454 GHz, Industrial Scientific and Medical radio frequency (RF) band ISM-2.4 GHz, Wireless Local Area Network (WLAN-2.4)are possible by simply changing one of the geometrical antenna dimensions. The antenna is characterized by stable radiation patterns as well.

scholarly journals Design of UWB Monopole Antenna with Dual Notched Bands Using One Modified Electromagnetic-Bandgap Structure

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Hao Liu ◽  
Ziqiang Xu
Keyword(s):  
Simple Structure ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Ultra Wideband ◽  
Dual Band ◽  
Area Network ◽  
Electromagnetic Bandgap ◽  
Uwb Antenna ◽  
Compact Size

A modified electromagnetic-bandgap (M-EBG) structure and its application to planar monopole ultra-wideband (UWB) antenna are presented. The proposed M-EBG which comprises two strip patch and an edge-located via can perform dual notched bands. By properly designing and placing strip patch near the feedline, the proposed M-EBG not only possesses a simple structure and compact size but also exhibits good band rejection. Moreover, it is easy to tune the dual notched bands by altering the dimensions of the M-EBG. A demonstration antenna with dual band-notched characteristics is designed and fabricated to validate the proposed method. The results show that the proposed antenna can satisfy the requirements of VSWR < 2 over UWB 3.1–10.6 GHz, except for the rejected bands of the world interoperability for microwave access (WiMAX) and the wireless local area network (WLAN) at 3.5 GHz and 5.5 GHz, respectively.

A compact uniplanar EBG structure and its application in band-notched UWB filter

2013 ◽  
Vol 5 (4) ◽  
pp. 491-498 ◽  
Author(s):  
Lalithendra Kurra ◽  
Mahesh P Abegaonkar ◽  
Ananjan Basu ◽  
Shiban K Koul
Keyword(s):  
Satellite Communication ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Ultra Wideband ◽  
Area Network ◽  
Electromagnetic Bandgap ◽  
One Dimensional ◽  
Notch Band ◽  
Narrow Bandgap

In this paper, a new way of obtaining a band rejection in a ultra wideband (UWB) filter using a uniplanar Electromagnetic bandgap (EBG) structure is reported. The EBG structure has a bandgap centered at 6.69 GHz which is almost 38% lower compared with the conventional uniplanar EBG of same dimensions. A one-dimensional EBG structure coupled with a microstrip line provides a narrow bandgap, which is used in obtaining a notch in the UWB filter. Single notch UWB filters with variations in the placement of EBG are fabricated producing a notch centered at 5.19 GHz (wireless local area network (WLAN)). A dual notch (5.16 and 8.24 GHz (satellite communication)) UWB filter is also fabricated with two different unit cell EBGs'. Switchable and tunable notch band UWB filters are proposed.

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