Design of a MEMS Broadband Microstrip Patch Antenna Based on Minkowski Fractal Boundary

2012 ◽  
Vol 503 ◽  
pp. 227-231
Author(s):  
Chong Ying Lu ◽  
Li Xin Xu
Keyword(s):  
High Resistance ◽  
Silicon Substrate ◽  
Patch Antenna ◽  
Microstrip Patch Antenna ◽  
Fractal Boundary ◽  
Microstrip Patch ◽  
Relative Bandwidth ◽  
Mems Technology ◽  
Simulation Results ◽  
Minkowski Fractal

A MEMS broadband microstrip patch antenna based on Minkowski fractal boundary is designed. An air layer is designed in the antenna’s high resistance silicon substrate by MEMS technology and microstrip patch antenna with second degree iteration Minkowski fractal boundary is simulated. Then different p on the influence on the broadband performance of the antenna is discussed. The simulation results show that the broadband performance can be gained from microstrip patch antenna with MEMS air layer based on second iteration Minkowski fractal boundary. 23.34% relative bandwidth of the optimized antenna is achieved and the requirement of the broadband communication is satisfied.

Research and Design of Novel Fractal Reader Antenna

2010 ◽  
Vol 43 ◽  
pp. 101-104
Author(s):  
Zu Jue Chen ◽  
Zhi Hui Zhong ◽  
Shu Yan
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Microstrip Patch Antenna ◽  
Size Reduction ◽  
Maximum Gain ◽  
Microstrip Patch ◽  
Reader Antenna ◽  
Simulation Results ◽  
Research And Design ◽  
Minkowski Fractal

This paper researches how the various iterations affect the characteristics of Minkowski fractal microstrip patch antenna. A 2-itration Minkowski fractal reader antenna is designed. In order to increase antenna bandwidth, the structure of a novel modified antenna is presented to operate at 2.45GHz with the return loss of -35.15dB and bandwidth of 180MHz, the maximum gain of which is 7.83dB. Besides, with its size of 30mm ×30mm, this antenna area is decreased by 43.75% and the width is decreased by 25% compared to normal square patch antenna. The simulation results show that it has a good size-reduction feature that can well meet the requirement for handheld RFID reader under certain size and characteristics.

scholarly journals A t-shaped partial ground microstrip patch antenna based UHF sensor for partial discharge detection

2020 ◽  
Vol 20 (2) ◽  
pp. 704
Author(s):  
Nayli Adriana Azhar ◽  
Norazizah Mohd Aripin ◽  
Goh Chin Hock ◽  
Nayla Ferdous ◽  
Saidatul Hamidah
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Partial Discharge ◽  
Signal Strength ◽  
Substrate Material ◽  
Microstrip Patch Antenna ◽  
Microstrip Patch ◽  
Preventative Measures ◽  
Design Requirements ◽  
Simulation Results

Continuous partial discharge (PD) monitoring and early PD detection is important in making sure the necessary preventative measures can be taken accordingly. This paper proposed a T-shaped partial ground microstrip patch antenna that is able to detect PD signal within the UHF range. The antenna was designed and simulated using CST Microwave Studio. The antenna was then fabricated using FR4 substrate material and tested for reception test. The simulation results and the analysis from the fabricated antenna confirmed that the proposed antenna able to detect PD signal at UHF range (specifically at about 500 MHz) and fulfilled the design requirements in terms of the return loss, VSWR, bandwidth and gain. Reception test had confirmed that the proposed antenna was able to detect PD signals that are located at maximum distance, ranges from 37 cm to 70 cm (depending on the PD signal strength). The proposed antenna also had succesfully detected PD occurances at 300 MHz to 700 MHz. In conclusion, the proposed T-shaped partial ground microstrip patch antenna had been successfully designed and able to detect PD signal emitted in the UHF range.

scholarly journals Tri resonance multi slot patch antenna

2020 ◽  
Vol 2 (1) ◽  
pp. 30-37
Author(s):  
Kemal Temur ◽  
Sehabeddin Taha Imeci
Keyword(s):  
Resonance Frequency ◽  
Current Distribution ◽  
Patch Antenna ◽  
Microstrip Patch Antenna ◽  
Simulation Tool ◽  
Microstrip Patch ◽  
Simulation Results

In this work, tri resonance multi slot microstrip patch antenna which operates at three center frequencies of 11 GHz, 11.9 GHz, 15.7 GHz is designed and simulated. As a commercial simulation tool, Sonnet Suites, a planar 3D electromagnetic simulator was used. Details of the simulation results are presented and discussed. As a result, an input match of -6.88 dB at the resonance frequency of 11 GHz, an input match of -37.12 dB at the resonance frequency of 11.9 GHz, an input match of -29.49 dB at the resonance frequency of 15.7 GHz were observed. The gain was observed as 8.25 dB at 11 GHz and 4.82 dB at 11.9 GHz. Also, the gain was observed as 7.07 dB at 15.7 GHz. The patch has several symmetric slots and it’s well known that slots change the current distribution of the patch antenna.

scholarly journals The Improved Radiations in Planar Microstrip Patch Antenna using Linear Slot Etched Ground Plane

2020 ◽  
Vol 8 (6) ◽  
pp. 123-127
Keyword(s):  
Dielectric Constant ◽  
Resonant Frequency ◽  
Patch Antenna ◽  
Ground Plane ◽  
Dominant Mode ◽  
Microstrip Patch Antenna ◽  
Microstrip Patch ◽  
Rectangular Microstrip Patch Antenna ◽  
Simulation Results ◽  
Good Agreement

Radiations improvement in a probe fed rectangular microstrip patch antenna using linear slot etched ground plane is proposed. Conventional MPA is designed using Glass Epoxy FR4 substrate. Substrate has dielectric constant 4.4 and its thickness 1.6 mm, operated at resonant frequency 3.05 GHz. The proposed method is simple and easy to etch on a substrate. This will suppress cross-polarized (XP) radiation field only without disturbing the dominant mode and co-polarized radiations. The concept has been tested using HFSS tool and verified its results experimentally. The experimental results show a good agreement with the simulation results.

scholarly journals Multiband Microstrip Patch Antenna for 5G Applications using DGS Technique

2021 ◽  
Vol 9 (VI) ◽  
pp. 4796-4801
Author(s):  
G Naga Shashank
Keyword(s):  
Dielectric Constant ◽  
Epoxy Resin ◽  
Patch Antenna ◽  
Ground Plane ◽  
Relative Dielectric Constant ◽  
Microstrip Patch Antenna ◽  
Ka Band ◽  
Software Simulation ◽  
Microstrip Patch ◽  
Simulation Results

In this article, a multiband microband antenna fed by a microband feeder is proposed, with a total area of 30x24x1.6 mm ^ 3 [1]. The planned antenna is printed on the FR4 epoxy resin substrate with a relative dielectric constant of 4.4 [2]. The multiband characteristics are produced by the differently shaped grooves used in the ground plane. The antenna covers two frequency bands, 24.0 GHz to 24.53 GHz, for K-band applications, and 26.7 GHz to 27.6 GHz, for Ka-band applications [3] [4]. The prototype of the expected antenna is planned and measured in advance. Ansys HFSS software simulation results are consistent with measurement result.

scholarly journals A novel tri-band reconfigurable microstrip patch antenna

Frequenz ◽  
2020 ◽  
Vol 74 (7-8) ◽  
pp. 247-253
Author(s):  
Wen Tao Li ◽  
Meng Wei ◽  
Bahareh Badamchi ◽  
Harish Subbaraman ◽  
Xiaowei Shi
Keyword(s):  
Patch Antenna ◽  
Simple Structure ◽  
Microstrip Patch Antenna ◽  
Pin Diodes ◽  
Microstrip Patch ◽  
X Band ◽  
Measurement Results ◽  
Simulation Results ◽  
Good Agreement ◽  
Ku Band

AbstractIn this paper, a novel tri-band reconfigurable patch antenna with simple structure is presented. By changing the on-off state of only two PIN diodes, the antenna can operate in three bands, namely X-band, Ku-band, and Ka-band. The overall size of the antenna is 0.24λL × 0.5λL × 0.019λL, where λL is the free-space wavelength of the lowest operating frequency. A prototype is fabricated and measured to verify the design. The measurement results are in good agreement with the simulation results, which indicate that the proposed antenna can be flexibly switched between three bands of 10.9–11.18 GHz, 15.65–15.9 GHz, and 32.3–33.6 GHz with stable radiation patterns.

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