In this paper a simple dual frequency microstrip antenna based on the second iteration of modified koch fractal configuration is presented. Compact reconfigurable dual frequency microstrip patch antenna for 3g and 4g. Input signal couples to the radiating patch trough the aperture that exists on the ground plane of microstrip feed line. This antenna can be tuned by changing the switching. Size of antenna is designed based on the simulation software of hfss from ansoft company, reducing antenna return loss by adjusting size and completing matching between patch. In the given paper, the design of microstrip rectangular patch antenna for dual band application that uses two frequencies, 3. Microstrip antenna with coaxial and linefeed technique, microstrip patch antenna experimentally optimize antenna parameters and decreases the return loss up to 35db for the frequency range to operate for bluetooth antenna in frequency range 2.
A dual frequency, compact single probefeed rectengular microstrip patch antenna with reduced size has been proposed in this paper. Using ie3d software package of zeland, according to the set size, the antenna is simulated. It has been shown that by cutting a slot in the radiating patch the antenna resonates at dual frequency of 4. This paper presents software based design, analysis and development of dual frequency circular microstrip patch antenna for a cband applications. 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. Juihan lu broadband dual frequency operation of circular patch antennas and arrayswith a pair of l shaped slots, ieee transactions on antenna and. Introduction the increasing use of wireless communication systems demands the antennas for di. A singlefeed dual frequency compact microstrip antenna with the frequency ratio between the two operating frequencies of 3. Pdf dualband rectangular microstrip patch antenna at. A compact dual band microstrip patch antenna is designed for c 48 ghz band and x 812 ghz band applications. The antenna size is very compact 40 mm x 60 mm x 1. Microstrip patch antenna assisted compact dual band. In this paper, a microstrip patch antenna with enhanced bandwidth is presented. Dual band x shape microstrip patch antenna for satellite applications.
Dual band microstrip patch antenna for sar applications. 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. In this article electrically small, dual band, triple frequency x shaped patch antenna on a substrate of ceramicptfe composites is presented. 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. Small dualfrequency microstrip patch antenna request pdf.
The proposed antenna consists of a rectangular patch having four uslots and one islot with hshaped dgs defected ground structure. The basics of patch antennas, updated orban microwave. Pdf dualfrequency patch antennas may provide an alternative to. They are lighter in weight, low volume, low cost, low profile, smaller in dimension and ease of fabrication and conformity. Experimental results of a smallsized antenna using an hshaped microstrip patch for single frequency operation are presented by palanisamy and garg 1985. Pdf dual frequency circular microstrip patch antenna. Design of a novel dualfrequency microstrip patch antenna for. Antennas which do not protrude from a surface are very desirable for. Slot loaded compact microstrip patch antenna for dual band.
Dielectric ceramic loaded stripline antennas have several advantages, namely small size, fairly narrow but still wide enough frequency band, and good temperature stability. Dual band rectangular microstrip patch antenna at terahertz frequency for surveillance system article pdf available in journal of computational electronics 91. An antenna must be tuned to the same frequency band that the radio system to which it is connected operates in, otherwise reception andor transmission will be impaired. This category can be extended to any kind of patch shape that offers two crosspolarized resonant modes.
Pdf new dualfrequency microstrip antennas for wireless. Tl model of microstrip patch antennas partially filled with clrh structures a conventional square microstrip patch antenna can be modeled as an openended tl. Moreover, the microstrip patch antennas can provide dual and circular polarizations, dual frequency. Design of singlelayer microstrip antennas for dual. A novel dualfrequency microstrip patch antenna for wlan applications is presented and demonstrated. New dualfrequency microstrip antennas for wireless. Slot loaded compact microstrip patch antenna for dual band operation avisankar roy1, sunandan bhunia2, debasree c. 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. This paper presents a coaxillyfed singlelayer compact dual band c and xband microstrip patch antenna for achieving dual polarized radiation suitable for applications in airborne synthetic aperture radar sar systems. Compact reconfigurable dual frequency microstrip patch. A dualband slotembedded microstrip antenna for dual. It consists of area of metallization supported above a ground. Three slot multibanded patch antenna for wban application.
This antenna can be tuned by changing the switching mode of two pin diodes from the onon state to offoff state to switch it over two different mobile. Properties of a basic microstrip patch a microstrip or patch antenna is a lowprofile antenna that has a number of advantages over other antennas. It is a multiple patch approach for getting dual frequency operation with a single feed point. The basic structure of the microstrip patch antenna is shown in figure 1. In the given paper a microstrip rectangular patch antenna is designed for dual frequency band applications in the ism band and wimax band. Design of dual band dual polarized microstrip patch antennas core. The concept used in calculating resonant frequency. The dualfrequency microstrip antenna could be easily designed by. Simon, the mitre corporation, bedford, massachusetts biography b. Adopted from a cpwfed rectangular patch antenna for wlanwimax applications. Consnarrow bandwidth low efficiency low gain figure 1 microstrip antenna 1 1. The microstrip antennas are design to operate in dual band and multiband application.
Analysis of dual frequency microstrip antenna using. In this paper, a novel compact dual band microstrip patch antenna with dual radiation modes is investigated. A dual frequency, compact single probefeed rectengular microstrip patch. Dual frequency patch antennas may provide an alternative to largebandwidth planar antennas, in applications in which large bandwidth is really needed for operating at two separate transmit. Figure 16 shows a microstrip antenna or patch antenna for a global positioning system gps receiver, using a high k dielectric substrate. The purpose of this paper is to develop the microstrip patch designed for dual frequencies of 945 mhz and 1960 mhz. The aim of this research is to achieve smaller size, better bandwidth and good radiation capability. Lu2003 analyzed a circular patch antenna and its arrays with a pair of lshaped slots for broadband dual frequency operation. In this work a reconfigured microstrip patch antenna for crossover. Compact coplanar dual band microstrip patch antennas for modernized gps b. A dual band microstrip rectangular patch antenna for wlan in vehicular communication applications is proposed. Dual band and dual polarized microstrip patch antenna. Pdf a novel compact dual frequency microstrip antenna. Wong and hsu1997 incorporated a ushaped slot in a equilateral triangular microstrip antenna to make it a broadband structure.
Coaxial fed trislot antenna for tripleband application. Research paper analysis and design of circular microstrip. If the antenna is excited at a resonance frequency, a strong field is set up inside the cavity, and a strong current on the bottom surface of the patch. Rostamy, resonance frequency of uncovered and covered rectangular microstrip patch using modified wolff model, ieee trans.
Compact reconfigurable dual frequency microstrip patch antenna for 3g and 4g mobile communication technologies. For this antenna, sufficient bandwidth was achieved by utilizing microstrip line technique, the desired frequency of 2. They are lighter in weight, low volume, low cost, low profile, smaller in dimension andease of fabrication and conformity. Complex structure of fractal shape is build up through replication of a base shape.
Pdf dual band uslotted microstrip patch antenna for c. In this paper, a new dual frequency, compact antenna, which uses an hshaped microstrip patch with a shorting pin, is described. Compared with the conventional rectangular patch antenna, this. Pdf compact reconfigurable dual frequency microstrip. Several prototype antennas operating at frequency ratios ranging from 1. The investigations on two new shortcircuited microstrip patch antennas, which are able to radiate dual frequencies at gps and bluetooth frequency bands, are. In this paper, a novel compact, dual frequency antenna is proposed and studied. Pdf microstrip patch antenna operating at dual resonant. The designed microstrip antenna is optimized to cover wlan. Microstrip antenna an overview sciencedirect topics. A dual frequency microstrip antenna using a double.
Another dualband antenna applying two arcshaped slots integrated close to the edge of the circular microstrip patch has been studied in 6. Design and analysis of microstrip patch antenna arrays. This paper presents air gap aperture coupled microstrip antenna for dual band operation over the frequency range of 2. The designed antenna has a frequency bandwidth of 184 mhz with the upper cutoff frequency of 2. Different types of slots are etched in the circular patch to provide dual frequency operation. Pdf the investigations on two new shortcircuited microstrip patch antennas, which are able to radiate dual frequencies at gps and bluetooth frequency. A new design of coplanar patches to get the dual band operation is proposed in this paper.
Results to simplify the simulation model, in this project the mems switches have been replaced by transmission lines for the closed state and for the open state the switches are simply removed as. Microstrip patch antennas have become the favorite of antenna designers because of its versatility and advantages of planar profile, ease of fabrication, compatibility with integrated circuit technology, and conformability with a shaped surface. The single layered antenna has been designed to resonate in dual. The design of a microstrip patch antenna is reported which can be operated at gps global positioning system.
We propose in this article, a novel compact reconfigurable patch antenna with frequency diversity. Compact coplanar dualband microstrip patch antennas for. The proposed antenna consists of a rectangular ground plane, a ushaped feed probe, and an hshaped slot radiating patch. By embedding two pairs of arc shaped slots with a narr. S kim circular polarized microstrip patch antenna for broadband and dual band operation electronics letters 29th april 2004, vol. The single layered antenna has been designed to resonate in dual frequency. This antenna differs from any other microstrip antenna with their feeding structure of the radiating patch element. 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. Because of many attractive features, microstrip patch. Compact reconfigurable dual frequency microstrip patch antenna for 3g and 4g mobile communication technologies article pdf available in microwave and optical technology letters 557. Sarkar3 abstracta novel design of a compact microstrip patch antenna using meandering technique is proposed in this paper where the designed antenna seems to behave as a microstrip patch loaded.
A dualfrequency microstrip patch antenna is proposed based on rectangular microstrip patch, with appropriating feed location selection of 50. New dualfrequency microstrip antennas for wireless communication. By adjusting the size of these structures, a dual band antenna can be obtained. The characteristics of a dual frequency compact antenna, which uses a rectangular microstrip patch with a shorting pin, are studied. Juihan lu broadband dual frequency operation of circular patch antennas and arrayswith a pair of l shaped slots, ieee transactions on antenna.
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