Dept, college of engineering, mosul university, mosul iraq. Polar plot of gain of antenna at resonant frequency 4. Dualfrequency microstrip patch antennas 271 figure 2. The basics of patch antennas, updated orban microwave. This thesis involves the design and analysis of dual band microstrip patch antenna which operates at lower and upper resonating frequency of 3. Dual polarization stacked microstrip patch antenna array. The antenna contains a rectangular patch with two rectangular slots positioned on the surface of the patch which is mounted upon a grounded substrate made of fr4 epoxy. Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. Most of the other dualfrequency patch antennas found in the literature can be subdivided into 2 multi patch dual frequency antennas, and 3 reactive2yzoaded dualfrequency patch antennas. The dual frequency and wideband operation of a trapezoidal patch with vshaped slot have been studies and simulated. Design of miniaturized dualband microstrip antenna for wlan. This paper presents the design and simulation of a compact rectangular slot patch antenna for dual frequency operation at 2. The patch may be considered as two antennas having resonant frequencies lagging and heading 45 in phase to produce the desired 90 phase difference at the design frequency 2400 mhz.
Dual polarization stacked microstrip patch antenna array with very low crosspolarization johan granholm, member, ieee, and kim woelders abstract this paper describes the development and performance of a wideband dual linear polarization microstrip antenna array used in the danish highresolution airborne multifrequency. By adjusting the size of these structures, a dual band antenna can be obtained. Designing for designing of a microstrip patch antenna, we have to select the resonant frequency and a dielectric medium for which antenna is to be designed. A dual band microstrip rectangular patch antenna for wlan in vehicular communication applications is proposed. Three multiband microstrip patch antennas mpas to operate at 3. Quadband duallayer microstrip antenna design for mobile. Therefore, the proposed dualfrequency antenna can radiate a conical dipolelike pattern and a broadside pattern. Dec 03, 2016 this paper presents the design and simulation of a compact rectangular slot patch antenna for dual frequency operation at 2. The design of a microstrip patch antenna is reported which can be operated at gps global positioning system. Dualfrequency microstrip antenna for wireless applications and effect on fraud arpita sen, neela chattoraj electronics and communication engineering department, birla institute of technology, mesra, ranchi, 835215, india.
This paper presents software based design, analysis and development of dual frequency circular microstrip patch antenna for a cband applications. Single layer dual band microstrip patch antenna using. Eshail2 oscar 100 dual band patch antenna uhfsatcom. Pcb antenna design requires a fundamental approach. Moreover, the microstrip patch antennas can provide dual and circular polarizations, dual frequency operation, frequency agility, broad bandwidth, feed line flexibility, and beam scanning omnidirectional patterning. Design of a novel dualfrequency microstrip patch antenna for. Design of compact dualband and triband microstrip patch. In either instance, the wavelength of the target operating frequency has a direct relationship with the size of the patch. The permittivity should be low for large bandwidth but high to make the patch antenna smaller. Aces revised copy dual frequency microstrip patch antenna. The antenna supports a dual band operation with good performance in gps l1 and l5 frequency bands.
The design graphs are then used to compute the dimensions of a rectangular patch and feed network for a dualfrequency antenna for use at 1. This category can be extended to any kind of patch shape that offers two crosspolarized resonant modes. The proposed antenna structures are mainly constructed from the forkshaped monopole antenna. Design of a dualband frequency reconfigurable patch antenna. In this contribution a dualband, dualpolarized microstrip antenna element for array applications is presented. A dualfrequency microstrip patch antenna is proposed based on rectangular microstrip patch, with appropriating feed location selection of 50. A design of singlefeed dualfrequency patch antennas with different polarizations and radiation patterns is proposed. A dualfrequency broadband design of coupledfed stacked. Compact rectangular slot patch antenna for dual frequency. Design of a dual patch triangular microstrip antenna. Circularly polarized cp dual frequency crossshaped slotted patch antenna on 1.
The single layered antenna has been designed to resonate in dual frequency mode. The aim of this research is to achieve smaller size, better bandwidth and good radiation capability. First, the design parameters for single element of rectangular patch antenna for 5. A novel dualfrequency microstrip patch antenna for wlan applications is presented and demonstrated. Design of dual band microstrip patch antenna using. Oct 17, 2018 first, the design parameters for single element of rectangular patch antenna for 5. The patch antenna is designed to operate simultaneously at around 30 and 20 ghz, the up and downlink frequencies of modern kaband satellite communication systems. Dual band microstrip patch antenna for sar applications. The proposed antenna is a stacked capacitive coupled patch antenna with bend parasitic elements having a dual polarisation capability. The work described in this section focuses on the design of a dual band dualpolarized sar antenna sharing the same physical aperture. In this project, a dual band microstrip patch antenna was designed for applications in wireless systems that operate on lte band 4, also known as aws, for data, voice, video and messaging services. The impedance matching and radiation characteristics of design structure investigated by mom based ie3dtmsimulation package. The first resonant frequency shifts down by varying.
In the given paper a microstrip rectangular patch antenna is designed for dual frequency band applications in the ism band and wimax band. Department of electrical engineering, indian institute of technology bombay. This research proposes a dualfrequency circularly polarized truncated square aperture patch antenna with slant stripline and lshaped slot for wlan applications. And it is found dual resonance with increasing lower resonance frequency and almost constant. A dual frequency microstrip patch antenna for highprecision gps. In this paper, a new dualfrequency, compact antenna, which uses an hshaped microstrip patch with a shorting pin, is described. Different types of slots are etched in the circular patch to provide dual frequency operation. Barnes cranfield college of aeronautics, cranfield university t his paper investigates the design, measurement and characteristics. Pdf new designs of obtaining a dual frequency bands antenna for the global positioning system gps lower band 1. In what follows, a detailed account of the design process and. Dualband slot microstrip patch antennas with dualradiation.
The antenna is composed of a vialoaded ring on the bottom layer and a circular patch on the top layer, both of which are coupledfed by a circular coupler. In the antenna design, the parameters were optimized and the wlanenabled dual frequency 2. We propose a new dual band microstrip antenna using compact quasifractal resonator with a laddershaped slot at a fundamental frequency around 2. A dual frequency, compact single probefeed rectengular microstrip patch antenna with reduced size has been proposed in this paper. An array of five split ring resonators srrs unit cells is inserted under the patch. By embedding two pairs of arc shaped slots with a narr. This project analyzes a dualband patch antenna, designed for mobile phones to be used as an internal antenna. Design a dualfrequency rectangular patch antenna microwaves. A design of singlefeed dual frequency patch antennas with different polarizations and radiation patterns is proposed. The design graphs are then used to compute the dimensions of a rectangular patch and feed network for a dual frequency antenna for use at 1.
Design of singlefeed dualfrequency patch antenna for gps. Gpsgnss l1l5 antenna design selected was a microstrip patch antenna. Single layer dual band microstrip patch antenna using probe feed. Compared with the conventional rectangular patch antenna, this antenna can achieve both a signi. Experimental study of stacked rectangular microstrip. By integrating rf mems switches into the design, a dual frequency patch antenna may be designed as shown in fig. This research proposes a dual frequency circularly polarized truncated square aperture patch antenna with slant stripline and lshaped slot for wlan applications. Circularly polarized s band dual frequency square patch. Other applications may require higher gain at certain frequencies and use multilayer configurations. Design of dual frequency stacked patch antenna for l band. Pdf dualfrequency patch antennas may provide an alternative to. Most of the other dualfrequency patch antennas found in the literature can be subdivided into 2 multipatch dual frequency antennas, and 3 reactive2yzoaded dualfrequency patch antennas.
In the antenna design, the parameters were optimized and the wlanenabled dualfrequency 2. Dual band microstrip patch antenna for wireless systems. A broadband dual band printed antenna for wlan is designed in section 3. Pdf dual frequency circular microstrip patch antenna design. Quadband dual layer microstrip antenna design for mobile handset. The antenna has been designed, modelled and simulated. Dual polarization stacked microstrip patch antenna array with. In the lowfrequency band, the antenna can radiate one radiation beam with high gain. Dualband operation of a microstrip patch antenna on a duroid. The proposed antenna is compact, occupies small volume and has simple structure compared to other antenna design. Design parameters and tradeoffs are presented for microstrip antennas. The antenna structure is composed of two stacked patches, in which the top is a square patch and the bottom is a cornertruncated squarering patch, and the two patches are connected together with four conducting strips. Pdf design of a dual band gps microstrip patch antenna.
The antenna presents a reconfigurable lower band and a steady band at higher frequencies. Gada mahmood faisal 1, kaydar majeed quboa 1, dia mohamad ali 2. Another dualfrequency design for a slotted triangular patch antenna with two shorting walls is described in. Review on design approach for dual frequency patch antennas. A frequency reconfigurable patch antenna design based on the characteristic mode analysis is presented. We use a simple rectangular, half wave long, probefed patch operating in its fundamental mode as an example. The variations of the length and width 1mm of the stacked rectangular patch antenna have been done. Patch antenna design of a dual patch triangular microstrip antenna dual patches offer wider bandwidth for wireless applications in the 2. For the feed network, two transmission lines are used to connect the two edge feeds to an open circuit stub to match the antenna at the two frequencies. The novel design is achieved by cutting rectangular slits at two sides of the. The best pcb antenna design software eases antenna. Design of miniaturized quadband dualarm spiral patch antenna for rfid, wlan and wimax applications ayia a.
Introduction this article introduces the basic concepts of patch antennas. Lte band4 has a bandwidth of 45 mhz for both the uplink and downlink bands. As an example, the size must increase to have it work at lower frequencies. About dual frequency and dual circularly polarized antenna.
In this paper, dual band microstrip patch antenna design using metamaterial for mobile gsm and wimax application is introduced. Basically transmission line modelling approach has been used to model the antenna. Another dual frequency design for a slotted triangular patch antenna with two shorting walls is described in. Dual frequency microstrip patch antennas 271 figure 2. Input signal couples to the radiating patch trough.
Most of the other dual frequency patch antennas found in the literature can be subdivided into 2 multi patch dual frequency antennas, and 3 reactive2yzoaded dual frequency patch antennas. In this case, the radiation characteristics of the two operating modes are similar to those of the tm 1 1 conical pattern and tm 2 1 broadside pattern modes of a normal. Experimental study of stacked rectangular microstrip antenna. Design of miniaturized quadband dualarm spiral patch. Dual frequency microstrip antenna for wireless applications and effect on fraud arpita sen, neela chattoraj electronics and communication engineering department, birla institute of technology, mesra, ranchi, 835215, india.
A novel compact dual frequency microstrip antenna sciencedirect. Dualfrequency circularly polarized truncated square aperture. Kaband antenna arrays with dualfrequency and dualpolarized. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. The antenna structure consists of microstrip feed line connected to a rectangular patch. Single layer dual band microstrip patch antenna using probe. For these various reasons, the prototype dual frequency. Key words microstrip antenna, dual frequency spa, hfss. The design of the entire antenna started with the design of a single rectangular patch figure 1 that resonates at the center frequency of 9. Few points a microstrip patch antenna consists of a radiating patch on one side of a dielectric substrate which has a.
Design of miniaturized dualband microstrip antenna for. In section 4, a dual frequency dual band microstrip antenna is designed, which is used to realize the dual band operation on the radiation side. This antenna differs from any other microstrip antenna with their feeding structure of the radiating patch element. Design of a dualband frequency reconfigurable patch. Design of miniaturized quadband dual arm spiral patch antenna for rfid, wlan and wimax applications ayia a.
Return loss and input impedance of the proposed semidisc antenna. In this work, a dual band dual polarised antenna is proposed for future 5g wireless communications that can operate at 28 ghz and 39 ghz 5g frequency bands. A slot is etched on the ground plane of the antenna, where two varactor diodes are placed on each side of the slot in order to tune the lower band. The proposed antenna is a simple structure of dimension 30. In this study, our goal is to design a microstrip patch antenna for wearable devices for dualband wifi frequencies. The dual band operation has been obtained by cutting vertical and. Pcb antenna design begins with establishing key performance parameters.
The design of a shorted patch antenna with dualfrequency. This paper presents air gap aperture coupled microstrip antenna for dual band operation over the frequency range of 2. A novel dualfrequency broadband design of a stacked microstrip monopolar patch antenna is proposed for wlan applications. A dualband dualpolarised stacked patch antenna for 28. The novel design is achieved by cutting rectangular slits at two sides of the patch.
The simulation of the designed antenna was done with the aid of computer simulation technology cst microwave studio version 12. The simulated antenna substrate is chosen as fr4 with a dielectric constant of 4. Moreover, the microstrip patch antennas can provide dual and circular polarizations, dualfrequency operation, frequency agility, broad bandwidth, feed line flexibility, and beam scanning omnidirectional patterning. The dual band operation has been obtained by cutting vertical and horizontal slots in the patch antenna. Shorted planar triangular patch antenna with dualfrequency. This paper presents air gap aperture coupled microstrip antenna for dualband operation over the frequency range of 2. The proposed solution has been realized by two stacked shorted annular elliptical patch antennas. The design principles and the antenna performance are.
The designed antenna has a frequency bandwidth of 184 mhz with the upper cutoff frequency of 2. We propose a new dualband microstrip antenna using compact quasifractal resonator with a laddershaped slot at a fundamental frequency around 2. In the low frequency band, the antenna can radiate one radiation beam with high gain. The picture below shows the dimensions of the dual band feed. Quadband duallayer microstrip antenna design for mobile handset. In this study, our goal is to design a microstrip patch antenna for wearable devices for dual band wifi frequencies. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. An h shaped dual band microstrip patch antenna array for gps receivers has been proposed.
The proposed antenna consists of a rectangular ground plane, a ushaped feed probe, and an hshaped slot radiating patch. Dualfrequency microstrip antenna for wireless applications. In all of the previous proposed antenna designs, narrow bandwidth was achieved for kuband applications. The major current distributions of the two modes on the triangular patch are similar to those of a normal triangular patch antenna operated at its tm11 and tm21 modes. By adjusting the size of these structures, a dualband antenna can be obtained. Depending on whether the switches are closed or open they alter the patch size and thereby the resonant frequency of the antenna. A novel dual frequency broadband design of a stacked microstrip monopolar patch antenna is proposed for wlan applications. We use a simple rectangular, half wave long, probefed patch operating in. Naji abstractin this paper, a new design approach is presented for achieving a miniaturized quadband microstrip patch antenna mpa suitable to be used for 915mhz uhf band, 2.