Design 10/30 compact antenna
219779680
Design and Performance Exploration of a Compact Dual Band Antenna for WBAN On Body Applications
This paper is formulated keeping in view the need of compact antennas for wireless body area network (WBAN) The designed compact dual band antenna (20mm x 22mm x 3.55mm) radiates at two resonant f.
J. Circuits Syst. Comput.
Asmita Rajawat Mohit Mohta Aayush Sharma Sindhu Hak Gupta
225158976
Compact Multiband Microstrip Printed Slot Antenna Design for Wireless Communication Applications
In this paper, a compact multiband printed antenna is proposed to cover four resonant bands in the range of 1 6 GHz. The antenna structure is inspired from that of the classical multi cavity magnetron resonator. The antenna comprises a slot annular ring structure in the ground plane of an Isola FR4 substrate having r 3.5 and thickness h=1.5 mm. The outer circle of the annular ring is loaded with radial arranged small circular slots. On the opposite side of the substrate, the antenna is fed with a 50 Ohm microstrip line. To investigate the effect of different antenna elements on the antenna performance, a parametric study is conducted. The antenna is simulated, fabricated, and measured. The simulated 10 dB return loss bandwidths for the four resonant bands are 35% (1.53 2.11GHz) 14% (2.9 3.34GHz) 12% (4.2 4.75GHz) and 9% (4.94 5.39GHz) respectively. Thus, the antenna is a proper candidate for many in use bands of wireless systems (1.65, 3.14, 4.44, 5.24 GHz) including LTE FDD, GNSS, GSM 450, W CDMA/HSPA/k, 802.11a, and IEEE 802.11ac WLAN. The results indicate that the designed antenna has quad band resonant responses with substantial frequency ratios of f4/f3, f3/f2 and f2/f1. Besides, the antenna offers reasonable radiation characteristics with a gain of 2.5, 4.0, 6.2, and 4.2 dBi, throughout the four resonant bands.
Hussain A Hammas Mohammed Fadhel Hasan Ali Sadeq Abdulhadi Jalal
225724713
Design of compact patch antenna with enhanced gain and bandwidth for 5G mm wave applications
A super compact parasitic patch loaded patch antenna with enhanced gain and super wide band is proposed in this study for 5G millimetre wave (mm wave) applications. The proposed antenna has hybrid geometry and is constructed using circular and two rectangular driven patches with two semi circular parasitic patches fed by stepped impedance microstrip line. The two rectangular stubs are incorporated on driven patch to improve the voltage standing wave ratio (VSWR) bandwidth. The two semi circular parasitic patches are added on the fundamental radiator (driven/main patch) to further enhance the bandwidth to cover the entire Ka band spectrum for 5G mm wave requirements and covers 24 40 GHz frequency spectrum with VSWR =2. This designed radiator is feasible to be placed inside the multilayered housing systems or can be integrated along with the electronic components existing on the printed circuit board. Furthermore, a four element modified corporate feed array configuration is constructed and their enhanced gain performances are compared with proposed radiator (single element) Both the prototypes are fabricated and experimentally validated for impedance and radiation characteristics and it is observed that, the simulated and measured responses are in good arrangement. The presented radiating element finds its applications in future 5G mm wave, 5G base station controlling networks and 5G wideband code division multiple access.
Parthasarathy Ramanujam Chandrasekar Arumugam Ramesh Venkatesan Manimaran Ponnusamy
216486900
Compact Wideband Decoupling and Matching Network Design for Dual Antenna Array
A novel wideband decoupling technique for multiple input multiple output (MIMO) antenna arrays is proposed. Broadband isolation is achieved by creating controllable transmission zeros (S21 0) at two separated frequencies. The newly developed decoupling network is compact in size due to the elimination of multiple transmission line elements and the external matching circuit. Simulation and measurement results show that the proposed method can offer substantial enhancement in port isolation, pattern diversity (envelope correlation coefficient) and radiation efficiency over the designated frequency range.
IEEE Antennas and Wireless Propagation Letters
Yi-Feng Cheng Kwok-Keung Michael Cheng
221794454
Design of A Compact C Shape Multiband Frequency Reconfigurable Antenna
In this paper, a Multiband Frequency Reconfigurable Antenna with a small compact size (20x35x1.6 mm) is presented. The designed antenna can work effectively under the following modes: two modes of single band and one mode with dual bands. The reconfigurability has been achieved accurately by switching (ON/OFF) the incorporated PINdiodes. The designed antenna is tested under the following applications; 3G, 4G AWS1 (17002100 MHz) Wireless Area Network (2.45 GHz and 5 GHz) and Worldwide Interoperability for Microwave Access (3.5 GHz) The designed antenna is fabricated as a C shape monopole placed on the commercial FR 4 substrate. The antenna is simulated using the student version of the Computer Simulation Technology (CST MWS) The three modes match the Reflection Coefficient (S11) 10 dB and the efficiency >84% The average gain ranged from 1.9 to 3 dBi. A prototype has been fabricated and measured. The comparison between the fabricated and simulated antenna results, such as S11, Efficiency, and gain, are illustrated. A good agreement between the results has been noticed which validates the design concepts.
Karam Mudhafar Younus
150215362
Design, Fabrication and Measurement of a Novel Compact Triband CPW Fed Planar Monopole Antenna Using Multi type Slots for Wireless Communication Applications
A novel compact coplanar waveguide (CPW) fed planar monopole antenna with triple band operation is presented for simultaneously satisfying the LTE 2600, WiMAX, WLAN and X band applications. It is printed on a single layered FR4 substrate. In this paper, the proposed antenna, which occupies a small volume of [Formula: see text][Formula: see text]mm3 including the ground plane, is simply composed of a CPW fed monopole with U L and T shaped slots. By carefully selecting the lengths and positions of both L shaped and U shaped slots, a good dual notched band characteristic at center rejected frequencies of 3.10[Formula: see text]GHz and 4.50[Formula: see text]GHz can be achieved, respectively. The T shaped slot is etched on the radiating element to excite a resonant frequency in the 7[Formula: see text]GHz band. Then, to prove the validation of the typical design, a prototype model is fabricated and measured. The experimental result shows that the three frequency bands of 2.31 2.80[Formula: see text]GHz (490[Formula: see text]MHz) 3.37 3.84[Formula: see text]GHz (470[Formula: see text]MHz) and 5.04 7.94[Formula: see text]GHz (2900[Formula: see text]MHz) can successfully cover the desired bandwidths of LTE2600/WiMAX (3.50/5.50[Formula: see text]GHz)/WLAN (5.20/5.80[Formula: see text]GHz) and the X band communication systems (7.1 GHz operation) The principal applications of the X band are radar, aircraft, spacecraft and mobile or satellite communication system. Nearly omnidirectional and bidirectional radiation patterns of the triband antenna are observed in both H and E planes, respectively. In addition, a reasonable gain over the operating bands has been obtained. Indeed, the good agreements between simulation and measurement results have validated the proposed structure, confirming its potential for multiband wireless communication services.
J. Circuits Syst. Comput.
Ahmed Zakaria Manouare Saida Ibnyaich Divitha Seetharamdoo Abdelaziz El Idrissi Abdelilah Ghammaz
209788302
A Ku Band, Compact, Polarization Reconfigurable, Multilayered, Wideband Antenna: A proposed design with high mechanical stability
In this report, a Ku band, compact, polarization reconfigurable, multilayered, wideband antenna is proposed. Two orthogonal linear polarizations can be realized by switching the ON OFF state of four p i n diodes that are embedded into the polarization reconfigurable coupling slots. The p i n diode switches and capacitors are installed in the middle layer of the microwave multilayer board to reduce their impact from the external environment, which improves the reliability and consistency of the antenna. Structure miniaturization of the antenna can be achieved by using a set of orthogonal cross gaps. The bandwidth and broadside gain characteristic of the proposed antenna can be significantly enhanced by employing a hollow cavity substrate and stacked patches. A prototype of the proposed reconfigurable antenna has been fabricated and tested. The measured fractional impedance bandwidth is larger than 22.4% with the reference of |S11| 10 dB. In addition, the polarization purity is better than 20 dB in both E and H planes. The measured gain versus frequency is stable and higher than 4 dBi within the operating frequency band.
IEEE Antennas and Propagation Magazine
Zhuofu Ding Shaoqiu Xiao Runjun Xiao
215752952
Design and Analysis of a Compact MIMO Textile Antenna with Improved Mutual Coupling for WBAN Applications
This paper proposes a miniaturized high isolation MIMO textile antenna for 2.4GHz ISM band Wireless Body Area Network (WBAN) applications. An inverted S type radiating element is used to reduce the overall dimension of the proposed MIMO textile antenna with very compact size of 86 mmx40 mmx1.6 mm. The proposed MIMO antenna consists of S shaped type radiator, ground and two slots. The Defected Ground Structure (DGS) are introduced in the shared ground plane of the proposed MIMO textile antenna to produce high isolation between the antenna elements. By putting two slits in a ground plane the isolation characteristic is improved and the resonant frequency can be controlled. In general, textiles present a very low dielectric constant that reduces the surface wave losses and increases the performance of the antenna. The proposed MIMO textile antenna has been designed on jeans substrate with dielectric constant er 1.6 and 1.6mm thickness. The proposed MIMO textile antenna has very low mutual coupling of (S21 25dB) low envelop correlation coefficient (ECC 0.001) high Diversity Gain (DG 9.5 dB and peak gain is around 3.0 dBi. The proposed antenna observed good performance in terms of S parameters, radiation properties, mutual coupling, and diversity gain (DG) envelop correlation coefficient (ECC) The proposed MIMO textile antenna is competitive for wearable applications, due to its compact size, single layer structure, easy integration and robustness. Date of Submission: 22 03 2020 Date of Acceptance: 09 04 2020
Tejaswini Ashtankar Tarannum Pathan
222359608
BAND NOTCHED UWB MIMO/DIVERSITY ANTENNA DESIGN WITH INDUCTANCE BOOSTED COMPACT EBG STRUCTURES
A triple band notch MIMO/Diversity antenna using Inductance Boosted Compact Electromagnetic Band Gap (IB CEBG) cells is presented in this paper. For obtaining compactness in the conventional EBG cell, spiral shaped defects are introduced. The proposed antenna obtains triple band notches in WiMAX (3.3 3.6 GHz) WLAN (5 6 GHz) and the X band satellite communication (7.2 8.4 GHz) bands. IB CEBG cells exhibits miniaturization of approximately 46% for WiMAX band, 50% for WLAN band and 48% for X band Satellite communication band, compared to conventional EBG cells. To enhance the isolation among all four compact UWB monopoles, rectangular slots in the ground plane and parasitic decoupling arrangement are utilised. Further, a stepped structure with an angular separation of 90* is incorporated with individual monopoles to reduce mutual coupling effects. Stepped structure also helps in the better impedance matching by incrementing the path length. The results show that the magnitude of transmission coefficient is greater than 15 dB in between the ports of proposed antenna elements. Envelope Correlation Coefficient is less than 0.5, which lies in tolerable limits for Ultra Wide band (UWB) frequency range. It has been noticed that notched frequency is dependent on IB CEBG cell parameters. The proposed antenna is fabricated using an FR 4 substrate with overall dimensions of 58 x 90 x 1.6 mm3.
Naveen Jaglan Priyanka Dalal Samir Dev Gupta Mahmoud A Abdalla
219909308
Design of compact triple band notched UWB MIMO antenna with TVC EBG structure
In this editorial, a compact two element Ultra Wide Band Multiple Input Multiple Output (UWB MIMO) antenna with triple band notch characteristics is presented. A single Two Via Compact Electromagnetic Band Gap (TVC EBG) structure is used to achieve triple band notches at WiMAX, WLAN, and X Band. An inverse L shaped stub is inserted in the ground plane of the antenna to diminish mutual coupling amid antenna elements. Isolation and Envelope Correlation Coefficient (ECC) is less than 15 dB and 0.015, respectively. The diversity properties like Total Active Reflection Coefficient (TARC) Diversity Gain (DG) are less than 10 dB and greater than 9.95 dB respectively. The proposed antenna is designed using a low cost FR4 substrate with overall dimensions of 21 x 36 x 1.6 mm3.
Ekta Thakur Naveen Jaglan Samir Dev Gupta