Research and Design of Magnetic Substrate Microstrip Antenna with Electromagnetic Band-Gap Structure

2014 ◽  
Vol 685 ◽  
pp. 314-319
Author(s):  
Hong Yang ◽  
Dan Liu ◽  
Wei Chen
Keyword(s):  
Magnetic Material ◽  
Magnetic Materials ◽  
Microstrip Antenna ◽  
Antenna Gain ◽  
Radiation Characteristics ◽  
Relative Bandwidth ◽  
Magnetic Substrate ◽  
Gain Loss ◽  
Band Gap Structure ◽  
Research And Design

Based on the magnetic materials (JV-5) substrate, Double L-shaped slot microstrip antenna is designed. The bandwidth is over 2 times that of the normal substrate and a 40% reduction in size happens.. On this basis, the microstrip antenna with magnetic substrate EBG structure is designed and the EBG structure uses the corrosive effects of joint floor, namely getting periodic H-shaped and circular structures by the floor corrosion, and performing a simulation with HFSS14.0. The results show that the EBG structure of magnetic material having a prominent advantage of the miniaturization and bandwidth-broaden compared to a microstrip antenna with non-magnetic materials substrate, resulting in more than 10% relative bandwidth and a slight gain loss. To some degree, introducing EBG structure can reduce the size of the antenna and increase its bandwidth, and it also improve the gain and radiation characteristics of the antenna.Key words: EBG structure; magnetic material;Double L-shaped slot microstrip antenna; gain

scholarly journals Study of Four Element Microstrip Antenna Array Using Patch Type Electromagnetic Band Gap Structure

2018 ◽  
Vol 8 (5) ◽  
pp. 3470-3474
Author(s):  
K. P. Rao ◽  
P. V. Hunagund ◽  
R. M. Vani
Keyword(s):  
Band Gap ◽  
Antenna Array ◽  
Antenna Arrays ◽  
Microstrip Antenna ◽  
Radiation Characteristics ◽  
Patch Type ◽  
Electromagnetic Band Gap ◽  
Microstrip Antenna Array ◽  
Band Gap Structure ◽  
Gap Structure

This paper describes enhancements in the performance of four element microstrip antenna array. The conventional microstrip antenna array is producing gain equal to 6.81dB. With the introduction of U shape patch type electromagnetic band gap structure, the proposed microstrip antenna array is producing an improved gain of 20.33dB. It is producing reduced mutual coupling of -31.44, -36.41 and -31.62dB respectively. The radiation characteristics of the proposed microstrip antenna array are improved with appreciable decrease in back lobe radiation and increase in forward power. It is resonating at single band at 5.53GHz, producing an overall bandwidth of 109.45%, against 4.89% of conventional microstrip antenna array. Microstrip antenna arrays are designed using Mentor Graphics IE3D software and measured results are obtained using vector network analyzer.

Research and Design of One New Type of Satellite Antenna Unit

2013 ◽  
Vol 273 ◽  
pp. 375-378
Author(s):  
Hui Yong Zhang ◽  
Li Wang ◽  
Ming Feng Shi
Keyword(s):  
Microstrip Antenna ◽  
Return Loss ◽  
Frequency Range ◽  
Effective Protection ◽  
Band Frequency ◽  
Simulation And Optimization ◽  
Relative Bandwidth ◽  
New Type ◽  
Research And Design ◽  
Ku Band

antenna unit is the front end of the vehicle satellite, whether to the effective protection of the signal is received, the paper presents a novel microstrip antenna as a photonic crystal cyclical contour cylindrical air gap, and the shape of the radiation patch cutNotching of the ladder-type shape and has a good base slotted for a large number of experiments, simulation and optimization of the antenna with HFSS V12, results showed that the patch was "Asian" font, the highest performance antenna and the structure of the antennathe broadband resonant characteristics, the return loss is less than a 10 dB, impedance relative bandwidth of up to 47.1%, in a KU-band frequency range of the voltage standing wave ratio (less than VSWR <2), the relative bandwidth ratio reached 68.9%, significantly improved antennathe indicators.

Millimeter Wave Fuze Radome Design Based Bandpass Frequency Selective Surface

2021 ◽  
Vol 36 (4) ◽  
pp. 411-418
Author(s):  
Min Zhao ◽  
Junjian Bi ◽  
Juan Xu ◽  
Jianping Zhao
Keyword(s):  
Millimeter Waves ◽  
Microstrip Antenna ◽  
Electromagnetic Waves ◽  
External Environment ◽  
Single Layer ◽  
Frequency Selective Surface ◽  
Radiation Characteristics ◽  
Conformal Array ◽  
Relative Bandwidth ◽  
Before And After

This paper studies a fuze radome system applied to millimeter waves. The system consists of feed antenna, radome, planar FSS array or curve conformal array. Microstrip antenna is used as the feed antenna. Based on the principle of equispaced and equal period respectively, cross units loading single layer dielectric form planar and curve FSS array. The FSS radome system can improve the permeability of hood to electromagnetic waves (EM) of passband, and reduce the interference of complex EM in the external environment to the system. The FSS radome will not deteriorate radiation characteristics of the feed antenna. The planar FSS radome has a passband of 98.2 GHz to 101.55 GHz with -10dB relative bandwidth of 3.35%. The curve FSS radome has a passband of 96.3 GHz to 101.8 GHz with -10dB relative bandwidth of 5.5%. In addition, the radiation characteristics of the proposed system are analyzed. It is found that the radiation pattern of the antenna is basically consistency before and after loading the radome.

scholarly journals Microstrip patch antenna with metamaterial using superstrate technique for wireless communication

2021 ◽  
Vol 10 (4) ◽  
pp. 2055-2061
Author(s):  
Rasha Mahdi Salih ◽  
Ali Khalid Jassim
Keyword(s):  
Wireless Communications ◽  
Reflection Coefficient ◽  
Wireless Communication ◽  
Patch Antenna ◽  
Relative Permittivity ◽  
Microstrip Antenna ◽  
Microstrip Patch Antenna ◽  
Antenna Gain ◽  
Microstrip Patch ◽  
Antenna Performance

This work builds a metamaterial (MTM) superstrate loaded on a patch of microstrip antenna for wireless communications. The MTM superstrate is made up of four G-shaped resonators on FR-4 substrate with a relative permittivity of 4.4 and has a total area of (8×16) mm2, and is higher than the patch. The MTM superstrate increases antenna gain while also raising the input reflection coefficient. When it is 9 mm above the patch, the gain increased from 3.28 dB to 6.02 dB, and when it is 7 mm above the patch, the input reflection coefficient was enhanced from -31.217 dB to -45.8 dB. When the MTM superstrate loaded antenna was compared to the traditional unloaded antenna, it was discovered that metamaterials have a lot of potential for improving antenna performance.

Qualification of Polyimide Based Coverlays for 900 MHz and 2.40 GHz Microstrip Antenna Applications

2012 ◽  
Vol 2012 (1) ◽  
pp. 001078-001080
Author(s):  
Deepukumar Nair ◽  
Glenn Oliver ◽  
Jim Parisi
Keyword(s):  
Resonant Frequency ◽  
Radiation Pattern ◽  
Microstrip Antenna ◽  
Microstrip Antennas ◽  
Frequency Detuning ◽  
Antenna Gain ◽  
Test Vehicle ◽  
Minimal Impact ◽  
Frequency Bands

Organic coverlays are required to protect microstrip circuits in most applications. The presence of coverlay can potentially influence the performance of microstrip antennas. This paper describes the qualification of polyimide based coverlays for microstrip antennas both in 900 MHz and 2.50 GHz frequency bands. An Inverted F-shaped antenna fabricated on FR-4 dielectric is used as the test vehicle and two different coverlay materials are tested with respect to key parameters like resonant frequency, S11 bandwidth, antenna gain, frequency detuning, and radiation pattern. The data presented in this paper clearly indicates polyimide materials are well suited to cover microstrip antenna circuits with minimal impact on performance.

Bandwidth improvement of planar antennas using a single-layer metamaterial substrate for X-band application

2020 ◽  
Vol 12 (9) ◽  
pp. 906-914
Author(s):  
O. Borazjani ◽  
M. Naser-Moghadasi ◽  
J. Rashed-Mohassel ◽  
R. A. Sadeghzadeh
Keyword(s):  
Microstrip Antenna ◽  
Single Layer ◽  
Dual Band ◽  
Planar Antennas ◽  
Radiation Characteristics ◽  
Dual Band Antenna ◽  
X Band ◽  
Field Radiation ◽  
Metallic Ring ◽  
Good Agreement

AbstractTo prevent far-field radiation characteristics degradation while increasing bandwidth, an attempt has been made to design and fabricate a microstrip antenna. An electromagnetic band gap (EBG) structure, including a layer of a metallic ring on a layer of Rogers 4003C substrate, is used. For a better design, a patch antenna with and without the EBG substrate has been simulated. The results show that the bandwidth can be improved up to 1.6 GHz in X-band by adding the EBG substrate. Furthermore, using this structure, a dual-band antenna was obtained as well. Finally, to validate the simulation results, a comparison has been done between simulation data and experimental results which demonstrate good agreement.

scholarly journals Compact UWB microstrip antenna with quadruple band-notched characteristics for short distance wireless tele-communication applications

2018 ◽  
Vol 7 (1) ◽  
pp. 57 ◽  
Author(s):  
Kalyan Rayavaram ◽  
K.T.V Reddy ◽  
Padma Priya Kesari
Keyword(s):  
Short Distance ◽  
Microstrip Antenna ◽  
Wide Band ◽  
Antenna Gain ◽  
Outer Length ◽  
Band Frequency ◽  
X Band ◽  
Wireless Telecommunication ◽  
Bottom Side ◽  
Good Range

In this paper, the design and simulation of a compact ultra-wide band (UWB) microstrip antenna with quadruple band-notched characteristics for short-distance wireless telecommunication applications were explored. The design process of the antenna is carried on FR4 substrate with dielectric constant 4.4, loss tangent 0.02, thickness of 0. 8mm and the size of the proposed antenna are 30×20 mm2. The rectangular monopole antenna endures a rectangular radiating patch with chamfered bevel slots on the top side, and a defective ground planed on the bottom side of the substrate. To realize single, dual, triple and quadruple band notch characteristics, slot-1 is created on the patch to achieve first notch at 3.5 GHz, which eliminates WIMAX signal, slot-2 is created on the patch to achieve second notch at 4.6 GHz, which eliminates INSAT signal, slot-3 is created on the patch to achieve third notch at 5.5 GHz, which eliminates WLAN signal and also fourth notch is created at 9.5GHz which eliminates X-band frequency with slot-1 outer length. The proposed antenna is well miniaturized and can be easily integrated with any compact devices. The simulated result shows that proposed antenna gain a good range of UWB from (2.6 GHz to 13.4 GHz).

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