The presence of arrays of microstrip elements provides greater directivity, higher gain, increased transmission range with less interference. The simulation results shows that the proposed antenna array can be successfully used as ultrawide band antenna over frequency range from 4. Measured results validate the performance improvement in port isolation and cross polarization level. Microstrip patch antennae radiate primarily because of the fringing fields between the patch edge and the ground plane. Polarization reconfigurable patch array antenna semantic. Design and development of reconfigurable rectangular patch. The 2 x 2 antenna array is designed and investigated. A 77 ghz reconfigurable micromachined microstrip antenna array. The basic antenna array is constituted of circular patches adapted with coplanar. It can be shown that the return loss of the patch antenna array without lc reaches the maximum value of 22. A comparative study is presented using rectangular, square, triangular and circular patch elements. A seriesfed microstrip patch array with interconnecting. Frequency reconfigurable log periodic microstrip dipole.
Designed reconfigurable rectangular patch antenna rrpa array is capable of resonating at 5. A thick origami reconfigurable and packable patch array. The frequency reconfigurable log periodic microstrip dipole array operated over c,x and ku bands has been designed and simulated by ansys hfss. Proposed rectangular patch antenna designed on fr4 substrate with relative permittivity of r 4. Reconfigurable microstrip patch antenna array with beam shaping. A comparitive study of four different shaped frequency. To design this antenna, agilent advanced design system ads, ver. Reconfigurable antenna arrays using pixel elements citeseerx. Reconfigurable microstrip stacked array antenna with frequency and pattern characteristics by n. The final part of this work has been concentrated on studying an. Reconfigurable gapcoupled backtoback truncated rhombuslike slotted patch antenna with steerable beams. A reconfigurable antenna is an antenna capable of modifying its frequency and radiation properties dynamically, in a controlled and reversible manner. A reconfigurable stacked patch microstrip array antenna.
Frequency tunable microstrip patch antenna using rf mems technology. In this design, three variation of beam steering is controlled adopting two rf switches currently copper pins for proof of concept. A 77 ghz reconfigurable micromachined microstrip antenna array by ismail ali hamieh a thesis submitted to the faculty of graduate studies through electrical and computer engineering in partial fulfillment of the requirements for the degree of master of applied science at the university of windsor windsor, ontario, canada 2012. Reconfigurable microstrip patch slot antenna array 1. Hfss design of rectangular patch antenna using microstrip line feedingedge feeding duration. The aperture of the system is made up of a large array of small 110.
This paper presents a linearly polarized beam reconfigurable microstrip parasitic antenna deployed with rectangular parasitic elements. Reconfigurable microstrip patch antenna array with beam. The antenna can operate with vertical and horizontal polarizations at the same time and hence realize polarization diversity. A new reconfigurable outofplane microstrip patch antenna is presented. Present fighter aircraft demands the use of single antenna for navigation, communication and combat applications. For this reason, the microstrip patch antenna which has a peak gain of about 5dbi and a halfpower beamwidth hpbw of about \90\circ \sim 100\circ \ is generally used to the array. In order to provide a dynamic response, reconfigurable antennas integrate an inner mechanism such as rf switches, varactors, mechanical actuators or. The geometrical structure of the proposed frequency reconfigurable log periodic microstrip dipole array antenna 2 is shown in figure. A reconfigurable microstrip rectangular parasitic array. The goal of this research is to develop an unconstrained reconfigurable programmable array antenna.
Aperturecoupled frequency and patterns reconfigurable microstrip stacked array antenna. A novel reconfigurable compact patch array antenna for directional and broadside application is proposed in. A thick origami reconfigurable and packable patch array with enhanced beam steering abstract. The antenna accordingly resonates at a lower frequency band. The microstrip patch array antenna is developed by using an aperture coupled technique. Reconfigurable reflectarrays and array lenses for dynamic antenna beam control. To obtain the switchable ability of the antenna, the concept of a reconfigurable antenna was pro posed a few years ago 47.
A horizontal azimuth pattern reconfigurable antenna with configurable parasitic element arrays for wlan applications is proposed in this paper. It consists of a flat rectangular sheet or patch of metal, mounted over a larger sheet of metal called a ground plane. The current planar phased array technology is typically limited in both scan angle and frequency bandwidth as a result of the limitations of the individual array elements and the effects of antenna. Antenna parameters such as frequency, radiation pattern, and polarization can be reconfigured. Introduction microstrip patch antenna arrays are currently used in satellite communications and wireless systems for their attractive features such as light weight, small size, low cost, improved directivity and obtaining a desired pattern which is not achiev. In a pattern reconfigurable patch antenna array was presented for 60 ghz. Polarization reconfigurable microstrip phased array. Citeseerx a reconfigurable microstrip antenna array. In this paper, initially single patch microstrip antenna with reconfigurability is designed. Opposite corners have been slotted on each patch, and a diode on each slot is used for. Reconfigurable microstrip antenna array geometry which. A microstrip or patch antenna operates in a way that when current though a feed line reaches the strip of the antenna, then electromagnetic waves are generated. Design of a simple circularly polarized dualfrequency. In this paper rectangular patch antenna array and reconfigurable rectangular patch antenna array is designed and simulated for bluetooth 2.
Reconfigurable rectangular patch antenna array is designed and simulated for bluetooth 2. Pier c online reconfigurable microstrip stacked array. Reconfigurable antenna arrays that are capable of resonating at multiple frequencies and radiating multiple patterns using a single feeder network are desirable in many applications. Reconfigurable microstrip patch slot antenna array. The omnidirectional microstrip array is adopted as an exciter, around. Wideangle scanning phased array antenna using high gain. The reconfiguration performance is realized to be frequencyhopping by inserting. Schauberts patent frequencyagile, polarization diverse microstrip antenna and frequency scanned arrays in 1983. It consists of a control board, a central seriesfed omnidirectional microstrip array, four configurable parasitic elements, a bottom conducting plate, and a top supporting plate. Wo2000025386a1 microstrip phase shifting reflect array.
A patch antenna is a type of radio antenna with a low profile, which can be mounted on a flat surface. Microfluidically frequencyreconfigurable microstrip patch. The base element for the reconfigurable array is the truncated corners microstrip antenna see fig. Pdf reconfigurable microstrip patch slot antenna array ijtet journal academia. Reconfigurable micro strip patchslot antenna array.
A pin diode was used to alter the length of the stub and to change the excitation phase of the patches. They are the original type of microstrip antenna described by howell in 1972. The concept is to build patch arrays using individual controllable pixels. Frequency reconfigurable microstrip circular patch antenna.
The three patches fed by inset feed line technique are connected with a single transmission line by a logperiodic array. Upon toggling the switch between on and off states, the antenna can be reconfigured 47. In this paper presents a reconfigurable of multiple element microstrip rectangular antenna and integration with pin diode switches. This paper describes a reconfigurable patch array antenna with beam steering characteristic. To increase directivity, gain and get better radiation.
They are the frequency reconfigurable stacked patch microstrip antenna with single structure and array configuration frspma and frspmaa and the pattern and frequency reconfigurable stacked patch microstrip array antenna prspmaa. An efficient approach for inband radar cross section rcs reduction of microstrip patch array antenna without employing extralow rcs artificial materials is proposed and analysed. The designed corporate feed concept is used to animate an eight elements linear array of rectangular microstrip patch. This paper presents a frequency and pattern reconfigurable stacked patch microstrip array antenna fed by aperturecoupled technique. A horizontal azimuth patternreconfigurable antenna using. Micromachined reconfigurable outofplane microstrip patch. Pdf reconfigurable microstrip patch slot antenna array. They operate at microwave frequencies where traditional antennas. A micromachined silicon based mems singlepolesinglethrow spst switches embedded reconfigurable microstrip antenna array for use in a 77 ghz trimode automotive collision avoidance radar is presented. A novel polarization reconfigurable array antenna is proposed and fabricated. Reconfigurable microstrip patch antenna array with beam shaping abstract. The proposed antenna has a microstrip patch above the substrate and a slot at the. Pattern reconfigurable wideband stacked microstrip patch. Microstrip patch antenna with coaxial feed using cst mws part 1 duration.
A microfluidically frequency reconfigurable microstrip patch antenna and array are proposed in this paper. Benefits or advantages of microstrip antenna following are the benefits or advantages of microstrip antenna. This article presents the first foldable thickorigami based antenna array made of a single nonflexible rigid printed circuit board pcb, which can be easily fabricated using a standard milling machine. A microstrip reconfigurable array antenna with integrated rfmems switches is proposed which can operate at dual frequencies. Frequency reconfigurable microstrip circular patch array. Comparative analysis of reconfigurable patch antenna array. Compound reconfigurable microstrip patch antenna array using. The switches are incorporated to circular patch to control or change the frequency. This paper proposes radiation reconfigurable patch antenna using feeding delay line technique.
In this study, a simple design of a fourelement circularly polarised dualfrequency reconfigurable microstrip patch antenna array for millimetrewave applications is proposed. The element of the array has a simple structure, consisting of a cornercut square patch and two tiny perturbation elements. The work undertaken is the proposal and simulation of a reconfigurable microstrip antenna array for adaptive base station operating in the umts frequency band. A reconfigurable microstrip rectangular parasitic array antenna. The concept of reconfigurable anten na firstly appeared in d. Specifically, this design uses two switches with operating frequency at 5. Reconfigurable antenna array has received a lot of attention in presentday wireless communication systems. A new microstrip dualband polarization reconfigurable antenna is presented for wireless local area network wlan systems operating at 2. The concept of reconfigurable antenna is widely used as an additional feature of reconfigurable ability for future wireless communication systems especially for cognitive radio applications, radar system and multifrequency communications. Microstrip array antenna inband rcs reduction using. Microstrip array antenna inband rcs reduction using polarization reconfigurable elements. A reconfigurable antenna is an antenna capable of modifying its frequency and radiation. For good antenna performance, a thick dielectric substrate having a low dielectric constant microstrip line basics and types and desgin of microstrip patch antenna for mobile for more information. This paper proposes compound reconfigurable patch antenna using integrated controlled ground modified structure cgms and sub delay.
The frspma antenna design was constructed from three layers of rtrogers 5880 materials due to the fact it. The invention relates generally to antenna arrays, and more specifically, it a new reconfigurable microstrip antenna array geometry which utilizes microelectromechanical system mems switches to electrically connect groups of printed patch. The array of these circular patches gives more directivity and scanning power, which makes it useful in many communication systems. Pdf analysis of reconfigurable microstrip patch antenna. Pdf reconfigurable micro strip patchslot antenna array. In the described antenna a patch was connected to a microstrip line stub shortened to a ground plane. The emphasis is put on compact 77 ghz micromachined microstrip antenna array, capable of being integrated with silicon base rotman lens that provides an intrinsic beamforming. Using micromachining processes, a microstrip antenna designed for operation around 26 ghz is covered with a thin layer of magnetic material and released from the substrate. Design and analysis of microstrip patch antenna arrays. A circularly polarized reflect array antenna having a plurality of antenna elements, where each antenna element has an electrically conductive patch, at least two electrically conductive stubs positioned along the periphery of the patch, and at least two switches each operable to connect or disconnect the patch to one of the at least two stubs. A 77 ghz reconfigurable micromachined microstrip antenna. Citeseerx document details isaac councill, lee giles, pradeep teregowda. By adding a polarization switch, the antenna can provide either rhcp or lhcp radiations. For the new reconfigurable antenna array, the beam pattern selectivity can be obtained by utilizing a switchable feeding network and the structure of the truncated corners.
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