Deshmukh vpcoe, baramati, maharashtra, india abstract reconfigurable antenna is an alternative to multiband antenna. Wideband radiation reconfigurable microstrip patch antenna. Keywords reconfigurable microstrip patch antenna, slots, swi tches, dual band, resonant frequency. The halfwave rectangular microstrip antenna has a virtual shorting plane along its center. Among various shapes of microstrip patch, rectangle, circular, square and triangular patch are the most popular because of better radiation characteristics. Experimental results are in good agreement with simulations. The microstrip patch is aperture coupled to a microstrip line located along the diagonal line of the patch. Normalized radiation pattern for microstrip patch antenna. It is more popular due to its compact size, low cost, light weight, etc. Dualband is achieved by the placement of a lumped capacitor on a slotted patch antenna, and the two resonant frequencies and their ratio are function of the capacitance value. The design of the filtenna started with the construction of the radiating element, the reconfigurable antenna.
In this system the separate frequency reconfigurable patch antenna systems that no need to require any control signals from the radio is presented 6. If the antenna had a 100% radiation efficiency, all directivity would be converted to gain. Evaluation of modeling accuracy of reconfigurable patch antennas. In order to provide a dynamic response, reconfigurable antennas integrate an inner mechanism such as rf switches, varactors, mechanical actuators or tunable materials that enable the intentional redistribution of the rf currents over the. Microstrip antennas are often used where thickness and conformability to the host surface are key requirements. Reconfigurable microstrip patch antenna for wlan software defined. International journal of engineering trends and technology,vol4,issue 4,april 20.
Frequency reconfigurable microstrip patchslot antenna. Reconfigurable beam steering using circular disc microstrip patch antenna with a ring slot is proposed. The optimum frequency range of antenna lies between 48ghz as well as used to c band for communication signaling. Typical half wave patches have efficiencies well above 90%. Microstrip patch is generally preferred for designing reconfigurable antenna because of its low profile characteristics. Advantages and disadvantages of microstrip patch antenna. Polarization controling approach in reconfigurable.
Design of reconfigurable microstrip patch antenna for wlan. This may be replaced with a physical shorting plane to create a quarterwavelength microstrip antenna. By changing the physical dimension of the antenna, its radiation pattern could be changed. By controlling the phase shift of applied currents through these probes, the antenna can be set to excite either the sum or the difference mode. In order to produce directional radiation pattern at all frequency bands, a reflector is installed at the back of the frequency reconfigurable slotpatch antenna 23. It mentions microstrip antenna advantages or benefits and microstrip antenna disadvantages or drawbacks. Design and analysis of microstrip patch antenna using. Sreedhar kumar et al frequency reconfigurable triangular microstrip patch antenna for wireless applications 278 international journal of computer systems, issn23941065, vol. We similarly show about the reconfigurable antenna and their types like frequency, polarization, radiation pattern and gain. Reconfigurable microstrip patch antenna using mems technology. Different techniques are used to achieve multiband and wideband operation of antenna. Design of frequency reconfigurable antenna using varactor. Polarization reconfigurable microstrip patch antenna for wireless communication applications.
Design and implementation of reconfigurable patch antennas for wireless communications by fei he a thesis presented to the faculty of the graduate college at the. The reconfigurable antenna design is described in section 2. Antenna design the antenna design of the proposed antenna is shown in fig. Effect of the effective dielectric constant on the radiation.
Reconfigurable microstrip patch antenna using mems. 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 antenna only has a single radiation edge equivalent slot which lowers the directivitygain of the antenna. A wideband rectangular microstrip patch antenna with reconfigurable radiation patterns is proposed in this paper, which contains two symmetrically inverted uslots, and incorporates two coaxial. Radiating patch is present on one side of a dielectric substrate and a ground plane is present on other side of substrate. Reconfigurable antenna wikimili, the best wikipedia reader. Microstrip patch antenna for c band satellite application.
In this paper, frequency reconfigurable slotpatch antenna with reflector at the back of an antenna is presented. This paper presents a design of frequency reconfigurable microstrip antenna which operates in sub6ghz band for 5g applications. Frequency reconfigurable patch antenna with bias tee for. Reconfigurable stacked microstrip patch antenna for multi. The directivity of patch antennas is approximately 57 db. Pdf a parasitic planar patch antenna capable of multi directional pattern reconfiguration is presented. New radiation patternreconfigurable 60ghz antenna for 5g. A frequencyreconfigurable microstrip patch switchable to slot antenna is proposed. Evaluation of modeling accuracy of reconfigurable patch. Frequency and polarization reconfigurable microstrip antenna. Comments on wideband radiation reconfigurable microstrip. Ashish kumar sahu is a record of an original research work carried out by his during 20142015 under my supervision and guidance in partial fulfilment of the requirement for the. Fundamental specifications of patch antennas radiation pattern a patch antenna radiates power in certain directions and we say that the antenna has directivity usually expressed in dbi. The antenna is capable of frequency switching at nine different frequency bands between 1.
This paper proposes radiation reconfigurable patch antenna using feeding delay line technique. Frequency reconfigurable patch antennas have attracted significant attention due to their ability to cover multiple frequency bands 1723. The central patch and other surrounding patches are connected by the switches. Read reconfigurable microstrip patch antenna for wlan software defined radio applications, microwave and optical technology letters on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. A reconfigurable microstrip patch antenna with switchable slot has been designed, fabricated, and measured. In this paper, frequency reconfigurable slot patch antenna with reflector at the back of an antenna is presented. Frequency reconfigurable microstrip patchslot antenna with directional radiation pattern by h.
Consequently, tuning of both frequencies is allowed by choosing proper capacitor value. Frequency reconfigurable microstrip patchslot antenna with. All antennas in which frequency and radiation patterns can be modified in a reversible and controlled manner are known as reconfigurable antennas. The 2 x 2 antenna array is designed and investigated.
A polarization reconfigurable microstrip patch antenna is presented for wireless local area network wlan dualband operation 2. You can to designed the microstrip antenna with omni radiation pattern by without a ground plane. Kaband radiation pattern reconfigurable microstrip patch. A frequency reconfigurable patch antenna design based on the characteristic mode analysis is presented. The antenna consists of a microstrip patch and a slot in the ground. A frequency reconfigurable printed microstrip fed patch antenna is proposed here.
To allow the operating frequencies and the bandwidths to be. Abstracta new pattern reconfigurable microstrip antenna is presented to demonstrate the capability of beam steering by controlling. Pdf patternreconfigurable microstrip patch antenna with. The patch antenna does not have omnidirectional pattern. Introduction reconfigurability has become a crucial feature in m odern wireless communication world. This page covers advantages and disadvantages of microstrip patch antenna. The radiation pattern reconfigurable antenna also has the ability to expand its waves in broad and narrow pattern. The designed antenna operates at the expected 60 ghz 5g frequency band with a central coaxial probe feed. Pattern reconfigurable wideband stacked microstrip patch antenna. Thus, impedance bandwidth increases with increasing substrate thickness. Directional and bidirectional patterns are produced by the patch and slot, respectively. Microstrip patch antenna mpa for wireless communication systems is.
Frequency reconfigurable triangular microstrip patch. A microstrip main patch was designed to the higher frequency, followed by the design of a secondary metal structure that allows the antenna to operate at the satellite receiver lower frequency band, when connected to the main patch. For achieving reconfigurability, the microstrip antennas are. Reconfigurable microstrip patch antenna for wlan software. Radiation pattern reconfigurable microstrip patch antenna. Polarization controling approach in reconfigurable microstrip. This paper presents a dual band frequency and polarization reconfigurable microstrip antenna. Sensors free fulltext reconfigurable diplexerbased. A frequency reconfigurable microstrip patch switchable to slot antenna is proposed. Design and implementation of reconfigurable microstrip patch antenna for sband applications p. The basics of patch antennas, updated orban microwave.
Ra can satisfy the diverse requirements and strict standards. The microstrip patch antenna produces three reconfigurable frequency bands while the slot produces another three frequency bands at the lower frequency region. The patch is generally made up of a conducting material such as copper or gold and can take any possible shape like rectangular, circular, triangular, elliptical or some other common shape. The simple design consists of two slots and two feeds. The direction of radiation pattern is newly controlled by interchanging two different lengths of corporate feeding network based on dedicated switches states of feeding line network. This antenna mainly comprises of a corner truncated square patch with a rectangular ring slot, eight pin diodes and six conductive pads. A microstrip pattern reconfigurable antenna is proposed in 4 which exhibit the different radiation patterns in xz and yz plane. The antenna presents a reconfigurable lower band and a steady band at higher frequencies.
In this paper,a new microstrip patch antenna allowing switching between lhcp and rhcp is proposed. In order to produce directional radiation pattern at all frequency bands, a reflector is installed at the back of the frequency reconfigurable slot patch antenna 23. Reconfigurable dualband patch antenna using varactorloaded slot. A novel single feed frequency and polarization reconfigurable.
Design and implementation of reconfigurable microstrip patch. Introduction microstrip patch antennas are printed directly onto a circuit board it becoming more useful. They are different from other antennas, as their mechanism of reconfiguration is located within the antenna and not controlled by an external beam. The antenna consists of a microstrip feed connected to a circular radiating element divided into three patches which are connected through silicon pin diodes used as switches for achieving reconfigurability as being cheap and easy to implement having high switching capabilities. A reconfigurable nano antenna by using of the graphene was reported in. Frequency reconfigurable tshaped microstrip patch antenna. It provides links on various topics on microstrip patch antenna. An omnidirectional microstrip patch antenna, capable of reconfiguring both polarisation and radiation pattern is proposed. When the switch is on the electrical size of antenna becomes small and it resonates at higher umts 2100 mhz band with circular. A reconfigurable antenna is an antenna capable of modifying its frequency and radiation properties dynamically, in a controlled and reversible manner. Multiband reconfigurable microstrip patch antenna hemantkumar mane, v. Survey on different types of reconfigurable patch antenna.
New radiation pattern reconfigurable 60ghz antenna for 5g. The reconfigurable antenna is the antenna which adaptively changes it characteristics. The microstrip patch antenna produces three different frequency bands with directional radiation pattern while the microstrip slot antenna produces another three. Frequency reconfigurable microstrip circular patch antenna for wireless devices ghanshyam singh, mithilesh kumar abstract in this paper, a frequency reconfigurable circular antenna design and development is proposed for wireless devices. Usually the microstrip antenna consisted of a radiator, a substrate and a ground is unidirectional beam. Index termsantenna, antenna radiation pattern, electromagnetic propagation, microstrip antenna, patch antenna i. Survey on different types of reconfigurable patch antenna for. Reconfigurable microstrip patch antenna a schematic view of the proposed antenna is plotted in figure 1. Ghanshyam singh and mithileshkumar, design of frequency reconfigurable microstrip patch antenna,2011 6th international conference.
By changing the states of the switches, the antenna can. This article describes the design of a microstrip patch antenna with radiation pattern reconfigurable characteristic, where two monolithically integrated mems switches are utilized. A microstrip patch that uses a thicker substrate is more efficient. A reconfigurable antenna is another solution to achieve a wide impedance bandwidth by switching on and off some parts of the antenna. Frequency reconfigurable microstrip circular patch antenna. The antenna is provided with five rectangular patches and four rf mems microelectromechanical systems for rf circuits switches. Introduction reconfigurable antenna ra for the function of changing its electrical parameters dynamically in respond to various environments has been studied extensively 1. This article describes the design of a microstrip patch antenna with radiation pattern reconfigurable characteristic, where two monolithically integrated mems. A microstrip graphene antenna was implemented in thz range in. The proposed antenna consists of a microstrip patch antenna and a microstrip slot antenna where the slot antenna is positioned at the ground plane underneath the patch. Reconfigurable antennas synthesis lectures on antennas.
Keywords microstrip patch antenna, reconfigurable antenna i. Above rectangular patch antenna is a designed using following equations, width of microstrip patch antenna is calculated by following equation, w 36. Omnidirectional microstrip patch antenna with reconfigurable. A cylindrical phantom is considered to know the effect of the antenna when it is close to the muscle at 2. Radiation efficiency, h, and unloaded radiation q, q o, as a functionof substrate thickness. The first resonant frequency shifts down by varying. In the proposed design, a circular patch antenna with circular slot using two pin diodes at the centre. A microstrip meander line reconfigurable antenna for wireless. Frequencyreconfigurable microstrip patchslot antenna.
Reconfigurable microstrip antenna array ijert journal. Introduction 1patch antennas are assigned different names such as printed antennas, microstrip patch antennas or simply microstrip antennas msa. In addition, as the substrate thickness increases, the radiation q of the antenna decreases. In this paper, a novel single feed frequency and polarization reconfigurable microstrip patch antenna is presented. Reconfigurable stacked microstrip patch antenna for multiband application lalit kumar lata lecturer, swami keshvanand institute of technology management and gramothan, jaipur, india abstract a novel design of reconfigurable stacked multipurpose broadband microstrip antenna for wimax application is presented. Alak majumder,rectangular microstrip patch antenna using coaxial probe feeding technique to operate in sband. Design and analysis of a frequency reconfigurable microstrip. The simple microstrip patch antenna 4 consists of a dielectric substrate having fixed dielectric constant. The gridded parasitic patch is formed by nine close coupled identical rectangular microstrip patches. In, graphene nanoribbon based thz antenna was realized.
The antenna is potentially suitable for cognitive radio application. Multiband, frequency reconfigurable, and metamaterial. Design of a dualband frequency reconfigurable patch antenna. Radiation pattern reconfigurable antenna for wban and wlan. A reconfigurable nested microstrip patch antenna is designed on a rogers 5880 rtduroid substrate. Comments on wideband radiation reconfigurable microstrip patch antenna loaded with two inverted uslots abstract.
Moreover, we present detailed structures of these rf mems switches, whose isolation and insertion loss are23. Application of graphenebased tunable circular reactive impedance substrate in thz dualband antenna was investigated in. It is the first paper for a wideband reconfigurable microstrip patch antenna design at 60 ghz confirmed by measurement results. The two feeds are positioned on the right and left diagonal of microstrip antenna. A wideband rectangular microstrip patch antenna with reconfigurable radiation patterns is proposed in this paper, which contains two symmetrically inverted uslots, and incorporates two coaxial probes along the resonant length of the patch. A frequency reconfigurable printed microstripfed patch antenna is proposed here. Design and simulation of a kaband pattern reconfigurable. Each of these patches is resonant at the antenna central.
A lot of work has been carried out frequency reconfigurable micro strip patch antenna for mobile communication standards summarized in 20. In this paper, the reconfigurable microstrip patch antenna using micro electro mechanical systems mems technology for micrometer wave application was designed. Compact microstrip antenna with patternreconfigurable. Pattern reconfigurable wideband stacked microstrip patch. The fields are linearly polarized, and in the horizontal direction when viewing the microstrip antenna as in figure 1a well see why in the next section. Microstrip patch antenna, reconfigurable frequency, pin diode. The proposed antenna design will use simple microstrip patch with inset feed and a ground plane with two square concentric ring slots as defected ground structure dgs and rogers rt 5880 as the substrate of.
For reconfigurable antennas, the potential is not to increase the performance of the antenna in a. It operates with two orthogonal 45 slanted linear polarisations and can produce two like radiation patterndipole s, providing 360 coverage in either the horizontal or elevation plane. A polarization reconfigurable antenna for dualband. This paper investigates a novel structure of a reconfigurable microstrip antenna integrated with the aperture coupling technique which can reduce spurious radiation pattern with stacked patch in. Pdf analysis of reconfigurable microstrip patch antenna. Polarization reconfigurable microstrip patch antenna for. This comment investigates some missing fundamental simulation and measurement results affecting the practical performance of the antenna presented in 1. A wideband rectangular microstrip patch antenna with reconfigurable radiation patterns is proposed in this paper, which contains two. Reconfigurable antenna, compact microstrip antenna, radiation pattern reconfigurability, mems switch 1.
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