This document reviews techniques for designing efficient microstrip patch antennas. It summarizes several papers that propose different techniques such as slot cutting, fractal geometry, and defected ground structures to improve antenna characteristics like bandwidth and gain. It then describes the design of an initiator patch antenna, including selecting parameters like operating frequency, dielectric constant, and substrate height. Dimensions of the initiator patch are calculated and different shaped slots are analyzed to modify the design. In conclusion, while techniques can improve limitations, further research is still needed to address issues like complex structures and reduced bandwidth or gain.
DESIGN OF A COMPACT CIRCULAR MICROSTRIP PATCH ANTENNA FOR WLAN APPLICATIONS pijans
This paper presents the design of a compact circular microstrip patch antenna for WLAN applications which covers the band 5.15 to 5.825 GHz. The antenna is designed using 1.4mm thick FR-4 (lossy)substrate with relative permittivity 4.4 and a microstrip line feed is used. The radius of the circular patch is chosen as 7.62mm. To reduce the size and enhance the performance of the proposed antenna, a circular slot is loaded on circular patch and a square slot is etched on the ground plane of dimension 30mm×30mm. Design of the antenna is carried out using CST Microsoft Studio Sonimulation Software. The proposed antenna resonates at 5.5 GHz with a wider bandwidth of 702 MHz and it provides low return loss of -31.58 dB, good gain of 3.23 dB and directivity of 4.28 dBi and high efficiency of around 79% against the resonance frequency. The geometry of the proposed circular antenna with reduced size and its various performance parameters such as return loss, bandwidth, VSWR, gain, directivity, efficiency and radiation pattern plots are presented and discussed.
A Novel Wideband Circularly Polarized Antenna for Worldwide UHF Band RFID Rea...IJERA Editor
This paper presents A Novel Wideband Circularly Polarized Antenna for Worldwide UHF Band RFID Reader
Applications with simple, compact structure. An air-substrate truncated patch antenna is used to achieve the
circularly polarized characteristic. The impedance and AR bandwidth of proposed antenna are 840-960 MHz
(VSWR less than 1.5) and (AR less than 3), respectively. Proposed antenna has a good radiation performance
with gain more than 8 dB. And it is a good choice for UHF RFID applications.
DESIGN OF A COMPACT CIRCULAR MICROSTRIP PATCH ANTENNA FOR WLAN APPLICATIONS pijans
This paper presents the design of a compact circular microstrip patch antenna for WLAN applications which covers the band 5.15 to 5.825 GHz. The antenna is designed using 1.4mm thick FR-4 (lossy)substrate with relative permittivity 4.4 and a microstrip line feed is used. The radius of the circular patch is chosen as 7.62mm. To reduce the size and enhance the performance of the proposed antenna, a circular slot is loaded on circular patch and a square slot is etched on the ground plane of dimension 30mm×30mm. Design of the antenna is carried out using CST Microsoft Studio Sonimulation Software. The proposed antenna resonates at 5.5 GHz with a wider bandwidth of 702 MHz and it provides low return loss of -31.58 dB, good gain of 3.23 dB and directivity of 4.28 dBi and high efficiency of around 79% against the resonance frequency. The geometry of the proposed circular antenna with reduced size and its various performance parameters such as return loss, bandwidth, VSWR, gain, directivity, efficiency and radiation pattern plots are presented and discussed.
A Novel Wideband Circularly Polarized Antenna for Worldwide UHF Band RFID Rea...IJERA Editor
This paper presents A Novel Wideband Circularly Polarized Antenna for Worldwide UHF Band RFID Reader
Applications with simple, compact structure. An air-substrate truncated patch antenna is used to achieve the
circularly polarized characteristic. The impedance and AR bandwidth of proposed antenna are 840-960 MHz
(VSWR less than 1.5) and (AR less than 3), respectively. Proposed antenna has a good radiation performance
with gain more than 8 dB. And it is a good choice for UHF RFID applications.
Design and Improved Performance of Rectangular Micro strip Patch Antenna for ...IJERA Editor
In the resent year the development in communication system requires the development of low cast, minimum weight and low profile antennas that are capable of maintaining high performance over wide spectrum of frequency. This technological trend has focused much effort into the design of micro strip patch antenna. The object of this paper is to design an micro strip line fed rectangular micro strip patch antenna which operate in C-band at 5.33 GHz the antenna design is based on high frequency structure simulation (HFSS) software which is infinite element method based. This proposed antenna is design at height of 1.5 mm from the ground plane at frequency of 5.33GHz. The HFSS software has become the most versatile, easy to used, efficient and accurate simulation tool. After the simulation the performance characteristics such as input impedance, return loss, and VSWR are obtained
Design of Dual Frequency Antenna For Global Positioning systemijsrd.com
In recent years low profile, light weight antennas are preferred for the applications which need mobility. In this research the polygonal-shape Microstrip Single Patch Antenna has been designed for GPS dual resonant frequencies (GPS L1 1.575 GHz & L5 1.176 GHz band). Simulated results for main parameters such as return loss, bandwidth, radiation patterns and gains are also discussed herein. The Designing, Simulation & Optimization of this antenna is done in ADS Software. Result of the simulation shows at 1.575 GHz and 1.176 GHz, the antenna has return loss at -20.862 dB and -14.162 dB respectively. .
Designing of Rectangular Microstrip Patch Antenna for C-Band ApplicationIJMER
Microstrip patch antenna becoming very popular day by day because of its ease of analysis, fabrication, low cast, light weight easy to feed and their attractive radiation characteristics. In this paper we proposed the designed of rectangular microstrip patch antenna to operate at frequency range 5-6 GHz. The simulation is carried out using high frequency simulation structure (HFSS) program.
The antenna is based on the modified epoxy substrate with dielectric constant of approximate 4.4. After simulation rectangular microstrip antenna performs characteristics such as VSWR & return loss smith chart
DESIGN OF A COMPACT CIRCULAR MICROSTRIP PATCH ANTENNA FOR WLAN APPLICATIONSpijans
This paper presents the design of a compact circular microstrip patch antenna for WLAN applications
which covers the band 5.15 to 5.825 GHz. The antenna is designed using 1.4mm thick FR-4
(lossy)substrate with relative permittivity 4.4 and a microstrip line feed is used. The radius of the
circular patch is chosen as 7.62mm. To reduce the size and enhance the performance of the proposed
antenna, a circular slot is loaded on circular patch and a square slot is etched on the ground plane of
dimension 30mm×30mm. Design of the antenna is carried out using CST Microsoft Studio Sonimulation
Software. The proposed antenna resonates at 5.5 GHz with a wider bandwidth of 702 MHz and it provides
low return loss of -31.58 dB, good gain of 3.23 dB and directivity of 4.28 dBi and high efficiency of around
79% against the resonance frequency. The geometry of the proposed circular antenna with reduced size
and its various performance parameters such as return loss, bandwidth, VSWR, gain, directivity, efficiency
and radiation pattern plots are presented and discussed.
Design and Improved Performance of Rectangular Micro strip Patch Antenna for ...IJERA Editor
In the resent year the development in communication system requires the development of low cast, minimum weight and low profile antennas that are capable of maintaining high performance over wide spectrum of frequency. This technological trend has focused much effort into the design of micro strip patch antenna. The object of this paper is to design an micro strip line fed rectangular micro strip patch antenna which operate in C-band at 5.33 GHz the antenna design is based on high frequency structure simulation (HFSS) software which is infinite element method based. This proposed antenna is design at height of 1.5 mm from the ground plane at frequency of 5.33GHz. The HFSS software has become the most versatile, easy to used, efficient and accurate simulation tool. After the simulation the performance characteristics such as input impedance, return loss, and VSWR are obtained
Design of Dual Frequency Antenna For Global Positioning systemijsrd.com
In recent years low profile, light weight antennas are preferred for the applications which need mobility. In this research the polygonal-shape Microstrip Single Patch Antenna has been designed for GPS dual resonant frequencies (GPS L1 1.575 GHz & L5 1.176 GHz band). Simulated results for main parameters such as return loss, bandwidth, radiation patterns and gains are also discussed herein. The Designing, Simulation & Optimization of this antenna is done in ADS Software. Result of the simulation shows at 1.575 GHz and 1.176 GHz, the antenna has return loss at -20.862 dB and -14.162 dB respectively. .
Designing of Rectangular Microstrip Patch Antenna for C-Band ApplicationIJMER
Microstrip patch antenna becoming very popular day by day because of its ease of analysis, fabrication, low cast, light weight easy to feed and their attractive radiation characteristics. In this paper we proposed the designed of rectangular microstrip patch antenna to operate at frequency range 5-6 GHz. The simulation is carried out using high frequency simulation structure (HFSS) program.
The antenna is based on the modified epoxy substrate with dielectric constant of approximate 4.4. After simulation rectangular microstrip antenna performs characteristics such as VSWR & return loss smith chart
DESIGN OF A COMPACT CIRCULAR MICROSTRIP PATCH ANTENNA FOR WLAN APPLICATIONSpijans
This paper presents the design of a compact circular microstrip patch antenna for WLAN applications
which covers the band 5.15 to 5.825 GHz. The antenna is designed using 1.4mm thick FR-4
(lossy)substrate with relative permittivity 4.4 and a microstrip line feed is used. The radius of the
circular patch is chosen as 7.62mm. To reduce the size and enhance the performance of the proposed
antenna, a circular slot is loaded on circular patch and a square slot is etched on the ground plane of
dimension 30mm×30mm. Design of the antenna is carried out using CST Microsoft Studio Sonimulation
Software. The proposed antenna resonates at 5.5 GHz with a wider bandwidth of 702 MHz and it provides
low return loss of -31.58 dB, good gain of 3.23 dB and directivity of 4.28 dBi and high efficiency of around
79% against the resonance frequency. The geometry of the proposed circular antenna with reduced size
and its various performance parameters such as return loss, bandwidth, VSWR, gain, directivity, efficiency
and radiation pattern plots are presented and discussed.
DESIGN OF A COMPACT CIRCULAR MICROSTRIP PATCH ANTENNA FOR WLAN APPLICATIONSpijans
This paper presents the design of a compact circular microstrip patch antenna for WLAN applications
which covers the band 5.15 to 5.825 GHz. The antenna is designed using 1.4mm thick FR-4
(lossy)substrate with relative permittivity 4.4 and a microstrip line feed is used. The radius of the
circular patch is chosen as 7.62mm. To reduce the size and enhance the performance of the proposed
antenna, a circular slot is loaded on circular patch and a square slot is etched on the ground plane of
dimension 30mm×30mm. Design of the antenna is carried out using CST Microsoft Studio Sonimulation
Software. The proposed antenna resonates at 5.5 GHz with a wider bandwidth of 702 MHz and it provides
low return loss of -31.58 dB, good gain of 3.23 dB and directivity of 4.28 dBi and high efficiency of around
79% against the resonance frequency. The geometry of the proposed circular antenna with reduced size
and its various performance parameters such as return loss, bandwidth, VSWR, gain, directivity, efficiency
and radiation pattern plots are presented and discussed
A Low Profile CombinedArray Antenna for Wireless Applicationdbpublications
In wireless communication, micro strip antenna is used for various applications such as Wireless local area network, Bluetooth, Cordless Telephones and ISM band. Here a low profile microstrip antenna is to be designed. The antenna is constructed with FR4 substrate having relative permittivity of 4.4 and thickness of 1.6 mm. The unique (symmetric) array design enhances the narrow bandwidth and gain. The design results in extended WLANin X-band applications. Using High Frequency Structure Simulator (HFSS) software package, the antenna is simulated and dimensions are adjusted to achieve the desired resonant frequencies for desired operation.
Microstrip Rectangular Monopole Antennas with Defected Ground for UWB Applica...IJECEIAES
This paper presents the design of new compact antennas for ultra wide band applications. Each antenna consists of a rectangular patch fed by 50Ω microstrip transmission line and the ground element is a defected ground structure (DGS). The aim of this study is to improve the bandwidth of these antennas by using DGS and the modification geometry of rectangular structure, which gives new compact antennas for UWB applications. The input impedance bandwidth of the antennas with S11<-10dB is more than 10GHz, from 3GHz to more than 14 GHz. The proposed antennas are investigated and optimized by using CST microwave studio, they are validated by using another electromagnetic solver Ansoft HFSS. The measured parameters present good agreement with simulation. The final antenna structures offer excellent performances for UWB system.
5G Fixed Beam Switching on Microstrip Patch Antenna IJECEIAES
5G technology is using millimeter-wave band to improve the wireless communication system. However, narrow transmitter and receiver beams have caused the beam coverage area to be limited. Due to propagation limitations of mm wave band, beam forming technology with multi-beam based communication system, has been focused to overcome the problem. In this letter, a fixed beam switching method is introduced. By changing the switches, four different configurations of patch array antennas are designed to investigate their performances in terms of radiation patterns, beam forming angle, gain, half-power bandwidth and impedance bandwidth at 28 GHz operating frequency for 5G application. Mircostrip antenna is preferred due to its low profile, easy in feeding and array configurations. Three different beam directions had been formed at -15°, 0°, and 15° with half-power bandwidth of range 45˚ to 50˚.
A PATCH ANTENNA DESIGN WITH BOOSTED BANDWIDTH FOR ISM BAND APPLICATIONSpijans
In recent times, the utilization of microstrip patch antennas (MPAs) has increased due to their simple
production, simple analysis, low cost, lightweight, easy feeding, and superior radiation characteristics.
Limited bandwidth is a key disadvantage of MPAs. In this paper, a rectangular patch antenna with partial
ground plane (PGP) strategy for ISM applications is proposed to overcome this deficiency and its
performance is compared with that of a traditional patch antenna. A low-cost FR-4 substrate with a
dielectric constant of 4.3 and a thickness of 1.6 mm is used to make both antennas designed. The antennas
are analyzed and simulated at the operating frequency of 2.45 GHz using CST software. The simulation
results show that the proposed antenna has a 0.1465 GHz i.e. 146.5 MHz bandwidth, which is more than
1.77 times larger than a conventional antenna (bandwidth = 0.0827 GHz i.e. 82.7MHz). The suggested
antenna is suitable for a wide range of wireless communication standards, such as Bluetooth (2.4 to 2.485
GHz), WiMAX (2.3 to 2.4 GHz), Microwave ovens (2.4 to 2.48 GHz), RFID (2.4 to 2.5 GHz), S-Band (2.3
to 2.4 GHz), Wireless Communication Services (WCS) 2.345 GHz to 2.360 GHz, and 4G LTE (2.3 to 2.315
GHz).
A PATCH ANTENNA DESIGN WITH BOOSTED BANDWIDTH FOR ISM BAND APPLICATIONSpijans
In recent times, the utilization of microstrip patch antennas (MPAs) has increased due to their simple
production, simple analysis, low cost, lightweight, easy feeding, and superior radiation characteristics.
Limited bandwidth is a key disadvantage of MPAs. In this paper, a rectangular patch antenna with partial
ground plane (PGP) strategy for ISM applications is proposed to overcome this deficiency and its
performance is compared with that of a traditional patch antenna. A low-cost FR-4 substrate with a
dielectric constant of 4.3 and a thickness of 1.6 mm is used to make both antennas designed. The antennas
are analyzed and simulated at the operating frequency of 2.45 GHz using CST software. The simulation
results show that the proposed antenna has a 0.1465 GHz i.e. 146.5 MHz bandwidth, which is more than
1.77 times larger than a conventional antenna (bandwidth = 0.0827 GHz i.e. 82.7MHz). The suggested
antenna is suitable for a wide range of wireless communication standards, such as Bluetooth (2.4 to 2.485
GHz), WiMAX (2.3 to 2.4 GHz), Microwave ovens (2.4 to 2.48 GHz), RFID (2.4 to 2.5 GHz), S-Band (2.3
to 2.4 GHz), Wireless Communication Services (WCS) 2.345 GHz to 2.360 GHz, and 4G LTE (2.3 to 2.315
GHz).
A TRIPLE RECTANGULAR-SLOTTED MICROSTRIP PATCH ANTENNA FOR WLAN & WIMAX APPLIC...jantjournal
ABSTRACT
A triple rectangular slotted microstrip patch antenna is designed and investigated with and without slot using CST Software. By using the triple rectangular shaped slot the designed antenna operates at 2.4GHz (ranging from 2.3704 GHz (Gigahertz) to 2.4391 GHz at -10dB return loss) for WLAN (Wireless Local Area Network) and 3.6GHz (ranging from 3.5643 GHz to 3.6548 GHz at -10dB return loss) for WiMAX (Worldwide Interoperability for Microwave Access) applications having a maximum return loss -28.5dB and -25.4dB respectively. For the design of this antenna we have chosen FR-4 (lossy) as substrate having permittivity 4.3. The designed antenna has appreciable values of gain and directivity at both the frequencies. The proposed antenna works on the principle of excitation of the slots at the operating frequencies. The antenna was designed keeping in mind the two major Wireless standards i.e., WLAN and WiMAX bands of frequencies. The proposed triple-rectangular slots are unique in terms of its construction and have appreciable results at the operating frequencies.
KEYWORDS
MSPA, Rectangular slots, Return loss, WLAN, WiMAX
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