The Design of a Microstrip Antenna with Radiation Pattern Controlled

2011 ◽  
Vol 143-144 ◽  
pp. 32-36
Author(s):  
Su Ling Wang ◽  
Ya Ting Gan ◽  
Guo Dong Wang
Keyword(s):  
Radiation Pattern ◽  
Radiation Intensity ◽  
Microstrip Antenna ◽  
Communication Systems ◽  
Microstrip Antennas ◽  
Theory Analysis ◽  
Antenna Theory

Microstrip Antennas have many applications in various communication systems. A new configuration of microstrip antenna is proposed in this paper. The microstrip antenna has two radiation ports. Through changing the radiation intensity of the two ports, the proposed structure breaks the balance of the radiation of the microstrip antenna therefore the radiation pattern would be changed corresponsively. Theory analysis is carried out based on microstrip antenna theory. Both analysis and simulation show that the new configuration can realize the radiation pattern controlled and the theory analysis agreed very well with simulation.

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.

scholarly journals Rancang Bangun Antena Mikrostrip Bowtie Pada Frekuensi 5,2 Ghz

2018 ◽  
Vol 10 (2) ◽  
pp. 15-21
Author(s):  
Aprinal Adila Asril ◽  
Lifwarda Lifwarda ◽  
Yul Antonisfia
Keyword(s):  
Dielectric Constant ◽  
Resonant Frequency ◽  
Resonance Frequency ◽  
Radiation Pattern ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Microstrip Antennas ◽  
Antenna Design ◽  
Narrow Bandwidth ◽  
Simple Materials

Microstrip antennas are very concerned shapes and sizes. Can be viewed in terms of simple materials, shapes, sizes and dimensions smaller antennae, the price of production is cheaper and able to provide a reasonably good performance, in addition to having many advantages, the microstrip antenna also has its drawbacks one of which is a narrow bandwidth. In this research will be designed a microstrip antenna bowtie which works at a frequency of 5.2 GHz which has a size of 68mm x 33mm groundplane. For the length and width of 33mm x 13mm patch. This antenna is designed on a printed cicuit board (PCB) FR4 epoxy with a dielectric constant of 4.7 and has a thickness of 1,6mm. This bowtie microstrip antenna design using IE3D software. This antenna has been simulated using IE3D software showed its resonance frequency is 5.270 GHz with a return loss -23 595 dB bandwidth of 230 MHz, VSWR 1,142, unidirectional radiation pattern and impedance 43,919Ω. The results of which have been successfully fabricated antenna with a resonant frequency of 5.21 GHz with a return loss -16.813 dB bandwidth of 79 MHz, VSWR 1.368, unidirectional radiation pattern, impedance 43,546Ω and HPBW 105 °.

scholarly journals Design of Microstrip Antenna Single Patch Semi Circular at 2.4 GHz Frequency with Inset Feed Method

2019 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Kirza Baihaqi
Keyword(s):  
Communication Technology ◽  
Microstrip Antenna ◽  
Communication Systems ◽  
Return Loss ◽  
Access Point ◽  
Microstrip Antennas ◽  
Line Of Sight ◽  
Final Project ◽  
Directional Radiation ◽  
Use Of Technology

<p><span lang="EN">The use of technology using cable has now been replaced by wireless communication technology, where most users use access point devices that have a limited emission range because on omnidirectional radiation, so we need an antenna that has a directional radiation pattern for a more directed emission range. Semi circular single patch microstrip antenna with inset feed method is one that can be used for this problem. In this final project, microstrip antennas can be applied to WLAN systems. The results of the test found that the antenna can work at a frequency of 2.4570000 GHz. </span><span>And besides that, also obtained a return loss of -25.68 dB, VSWR of 1.122 dB, bandwidth of 84.250000 MHz, Gain of 13.96 dBi, Average LOS (Line Of Sight) of 24.73 Mbps for uploads and 10.37 Mbps for downloads, Average NLOS (Not Light of Sight) of 14.34 Mbps for uploads and 7.78 Mbps for downloads, Distance testing along 130 meters of LOS conditions and 140 meters of Lossess conditions, the results obtained are feasible to be implemented on wifi systems and other communication systems with a 2.4 GHz frequency.</span></p>

scholarly journals MIMO Reconfigurable Antennas for Wi-Fi 2.4 GHz Communication.

2019 ◽  
Vol 9 (2S) ◽  
pp. 137-144 ◽  
Keyword(s):  
Wireless Communication ◽  
Microstrip Antenna ◽  
Communication Systems ◽  
Multipath Propagation ◽  
Low Cost ◽  
Microstrip Antennas ◽  
Information Rate ◽  
Radio Waves ◽  
Limited Information ◽  
Mimo Antenna

We are living in the era of wireless communication. From accessing Internet through smartphones and Wi-Fi, changing TV channels with remote controls, using wireless computer peripherals like mouse, keyboards and headphones to mobile body area networks for keeping track of heart rate, blood pressure and body temperature, applications of wireless communication is everywhere. The most frequent and common use of wireless communication is mobile phones or cellular phones which uses the radio waves to carry data from one place to another. Though there are many advantages of wireless communication which makes it so popular, there are two most significant challenges in implementing a wireless communication system: multipath propagation and limited information rate. The concept of multipath propagation refers to travelling of wireless signal to the receiving antenna via different paths in space resulting in inter-symbol interference and fading. This phenomenon leads to failure of maximum use of the bandwidth resulting in low information rate. The problematic event of multipath propagation can be exploited by using more than one antenna (MIMO) in the sending and the receiving side. Multiple sending antennas use the concept of space diversity by sending same data signal through different path based on the fact that different version of the same signal will be received by the receiver increasing quality and reliability of the received data signal.Though in the current usage scenario, MIMO actually exploits multipath propagation concept for carrying more than one data stream over the same radio signal. One of the most important factors that influence the efficiency of MIMO antenna systems is the design layout of multiple antennas. Microstrip antennas, having small height and width, low cost, low weight and small volume can be a suitable candidate for being used as MIMO. The wireless performance of locally limited wireless communication systems such as Bluetooth and Wi-Fi using 2.4 GHz unlicensed band can be increased significantly by incorporating the advantages of MIMO and microstrip antenna technology. In this paper, the performance of MIMO Microstrip antenna using OFDM technique for 2.4 GHz communication has been evaluated.

scholarly journals Wideband Microstrip Dipole Antenna Design for WLAN/WiMAX Applications

2019 ◽  
Vol 8 (2) ◽  
pp. 59-62
Author(s):  
A. Sondas
Keyword(s):  
Wireless Communication ◽  
Radiation Pattern ◽  
Microstrip Antenna ◽  
Narrow Band ◽  
Microstrip Antennas ◽  
Dipole Antenna ◽  
Antenna Design ◽  
Light Weight ◽  
Main Disadvantage ◽  
Low Volume

Recently, microstrip antennas are preferred in all areas of wireless communication, due to their advantages such as low volume coverage, light weight, surface compatibility, high cost requirements and easy production etc. The main disadvantage of these antennas is their narrow band performance (~11%). In the literature, there are some wideband microstrip antenna designs. These broadband characteristics are obtained by changing the antenna geometry or by adding new parasitic patches to the antenna elements. In this study, a classical wideband microstrip dipole antenna (MDA) design which can be used in WLAN/WiMAX applications (covering the bands 2.4–2.5 GHz and 2.5–3.5 GHz) is introduced. The proposed antenna has a pair of twisted strip which are placed asymmetrically near the feed of the dipole element with a length of 52 mm (~λ/2). Also a pair of square loop elements is placed on a sublayer. The proposed MDA has a resonance between 2.06-3.72 GHz with a bandwidth of 57%. The antenna has a directive radiation pattern with a gain of 6.49-3.98 dBi.

Microstrip Antenna-inception, Progress and Current-state of The Art Review

2020 ◽  
Vol 13 (6) ◽  
pp. 769-794 ◽  
Author(s):  
Gunaram ◽  
Vijay Sharma
Keyword(s):  
Microstrip Antenna ◽  
Communication Systems ◽  
State Of The Art ◽  
Horn Antenna ◽  
High Gain ◽  
Microstrip Antennas ◽  
Impedance Bandwidth ◽  
Ieee Transaction ◽  
Manufacturing Techniques ◽  
Number Of Publications

Background: Microstrip antenna has gained significant attention for a large number of communication systems due to its adaptable features and compatibility. Objective: The major objective of this manuscript is to assess the microstrip antenna technology for structure adaptability, the feature based performance capabilities, design and versatility. Methods: The major reviews conducted in every decade on antenna technology highlighted the significance of microstrip antenna technology. Moreover, a review of the articles on microstrip antenna published in ‘IEEE Transaction on Antenna and Propagation’ revealed that these antennas can primarily be used instead of other types of antennas. : The available presentation of microstrip antennas includes features, such as small size, flatness (low profiles), wide-ranging impedance bandwidth, high gain, and circular polarization. A chronological assessment of the major endeavors in the microstrip antenna study conducted during the last four decades, is highlighted. Results: This manuscript focuses on the cutting-edge developments in the microstrip antenna technology and facilitates various modern designated extents, which provide the readers an insight into the tractability presented by microstrip antennas and their prospective benefits as compared to different types of other antennas like lens antenna, dish antenna, horn antenna, etc. The recent advancements in manufacturing techniques of microstrip antenna are reviewed. A large number of publications on the applications of microstrip antennas, such as communication, sensing, energy harvesting, biomedical relevance etc. are also included to show their importance at present. Conclusion: This article presents a state of the art evaluation of the research carried out on microstrip antennas from the time of their inception to till date. It consolidates the information for the researchers working in this field and will be helpful in enhancing the efforts for the research.

scholarly journals Modified Dual-Band Stacked Circularly Polarized Microstrip Antenna

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Guo Liu ◽  
Liang Xu ◽  
Yi Wang
Keyword(s):  
Radiation Pattern ◽  
Global Positioning System ◽  
Microstrip Antenna ◽  
High Performance ◽  
Axial Ratio ◽  
Dual Band ◽  
Optimized Design ◽  
Positioning System ◽  
Circularly Polarized ◽  
Global Positioning

A novel high-performance circularly polarized (CP) antenna is proposed in this paper. Two separate antennas featuring the global positioning system (GPS) dual-band operation (1.575 GHz and 1.227 GHz for L1 band and L2 band, resp.) are integrated with good isolation. To enhance the gain at low angle, a new structure of patch and two parasitic metal elements are introduced. With the optimized design, good axial ratio and near-hemispherical radiation pattern are obtained.

Microstrip antenna array for multiband dedicated short range communication systems

2011 ◽  
Vol 53 (12) ◽  
pp. 2794-2796 ◽  
Author(s):  
Tiago Varum ◽  
João Matos ◽  
Pedro Pinho ◽  
Ricardo Abreu ◽  
Arnaldo Oliveira ◽  
...  
Keyword(s):  
Antenna Array ◽  
Microstrip Antenna ◽  
Communication Systems ◽  
Short Range ◽  
Dedicated Short Range Communication ◽  
Microstrip Antenna Array

scholarly journals A Circular Disc Microstrip Antenna with Dual Notch Band for GSM/Bluetooth and Extended UWB Applications

2018 ◽  
Vol 7 (2.16) ◽  
pp. 11
Author(s):  
Sanjeev Kumar ◽  
Ravi Kumar ◽  
Rajesh Kumar Vishwakarma
Keyword(s):  
Radiation Pattern ◽  
Microstrip Antenna ◽  
Ground Plane ◽  
Circular Disc ◽  
Ultra Wideband ◽  
Resonant Circuit ◽  
Frequency Range ◽  
Notch Band ◽  
Uwb Applications ◽  
Ku Band

A microstrip antenna with a circular disc design and modified ground is proposed in this paper. Circular shapes of different size have been slotted out from the radiating patch for achieving extended ultra wideband (UWB) with GSM/Bluetooth bands with maximum bandwidth of 17.7 GHz (0.88-18.6 GHz). Further, characteristic of dual notch band is achieved, when a combination of T and L-shaped slots are etched into the circular disc and ground plane respectively. Change in length of slots is controlling the notch band characteristics. The proposed antenna has rejection bandwidth of 1.3-2.2 GHz (LTE band), 3.2-3.9 GHz (WiMAX band) and 5.2-6.1 GHz (WLAN band) respectively. It covers the frequency range of 0.88-18.5 GHz with the VSWR of less than 2. Also, an equivalent parallel resonant circuit has been demonstrated for band notched frequencies of the designed antenna. The gain achieved by the proposed antenna is 6.27 dBi. This antenna has been designed, investigated and fabricated for GSM, Bluetooth, UWB, X and Ku band applications. The stable gain including H & E-plane radiation pattern with good directivity and omnidirectional behavior is achieved by the proposed antenna. Measured bandwidths are 0.5 GHz, 0.8 GHz, 1.1 GHz and 11.7 GHz respectively. 

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