Alternate feed methods a common variation in patch antenna design is the location and routing of the feed, to obtain a desired feedpoint impedance, to control the polarization, or for convenient layout. The loading and bending of the dielectric superstrate a. Watson research center, ibm, yorktown heights, ny 10598, usa email protected email protected abstract this paper presents a balancedfed aperturecoupled patch antenna suitable for broadband millimeterwave communications. By grouping parasitic patches within the designed superstrate layer and introducing a switching circuit with pin diodes, it has been possible to create sections that can be steered using only 4 digital input output ports.
We also present the details of the proposed antenna design. Us6946995b2 microstrip patch antenna and array antenna. Design and application of a metamaterial superstrate on a. Appropriate selection of dielectric material and its thickness is an important. The antenna is realized in a lowcost pcb technology and can.
The patch is engraved on fr 4 substrate having a thickness of 1. When a microstrip antenna is covered with a superstrate dielectric layer, its properties like resonance frequency, gain and bandwidth are changed which. The photonic crystal is used as a superstrate which has a thickness of 1. This design helps to enhance gain and efficiency of microstrip patch antenna at resonance frequency. The proposed antenna was designed on a ceramicfilled bioplastic sandwich substrate. Improving microstrip patch antenna directivity using ebg. Microstrip patch antenna for simultaneous temperature. Fss structures can also be used as antenna superstrate to enhance antenna directivity. Gain enhancement for microstrip reflectarray using. Microstrip patch antenna with fractal structure using. Broadband compact microstrip patch antenna design loaded by. Introduction a microstrip antenna consists of a radiating patch on one side of a dielectric substrate, which has a ground plane on the other side. Effect of two different superstrate layers on bismuth. Effect of superstrate on a cylindrical microstrip antenna.
The new antenna device combines the wideband characteristic of the aperture coupled antenna and the desirable characteristics of the fss structure. Size reduction and performance enhancement of pi shaped patch antenna using superstrate configuration pir saadullah shah1, shahryar shafique qureshi2, muhammad haneef3, sohail imran saeed4. The conducting patch, theoretically, can be designed of any. Design equations the following are the equations formulated for a layer of patch with superstrate15. So to improve the performance, there was a need to modify the design and optimize patch antenna for high. In section 2, the metasurface is designed and analyzed for its emnz and nzri properties and its transmission and reflection characteristics are highlighted. The antenna is used to design for use with a low cost imaging radar microsar. Enhanced patch antenna performance using two layers.
Size reduction and performance enhancement of pi shaped. Study of antenna superstrates using metamaterials for. Microstrip patch antenna for simultaneous temperature sensing. The metamaterial superstrate antenna plays a major role for improving the gain of the antenna. Dielectric layer to match antenna superstrate assembly at design frequency. The final structure has been achieved after three iterations. In the modern era, metamaterials are gaining enormous interest of researchers due to their peculiar electromagnetic properties. Isolation and gain enhancement of patch antennas using. The proposed antenna is excited by using the edge, inset, probe and aperture feeding methods. The fundamentals of patch antenna design and performance.
Design of high gain, wideband microstrip resonant cavity. Basic patch antenna design although there are many variations on patch antenna design, the basic configuration is shown in figure 1, where l is then length relative to the feedpoint and w is the width. In this research, the superstrate layer was thus redesigned using the transmission matrix in. A fss structure of square patches proposed by is shown in figure 5a, and the distance between the fss superstrate and the microstrip antenna ground plane is about 15 mm. The antenna is impedancematched by means of a quarterwavelength. Physically connected stacked patch antenna design with 100. This superstrate antenna gives a very high estimated.
The details of the proposed antenna design and results are presented in the following sections. In the proposed design, two microstrip patch antennas are designed to be placed in close proximity to each other and. Electronically reconfigurable superstrate eres antenna. High gain and broadband microstrip patch antenna using a. In order to design a microstrip patch antenna at first the designer is to select the substrate material and its thickness.
Study of a microstrip antenna with and without superstrate for. Metamaterial superstrate microstrip patch antenna for 5g. High gain superstrate loaded membrane antenna based on. An aperture coupled patch antenna eliminates the direct electrical connection between the feed and radiating conductors by employing two dielectric substrates separated by a ground plane. The schematic of the proposed antenna is shown in fig.
Metamaterial superstrate antenna design with gain enhancement. Design of metamaterialloaded rectangular patch antenna. Metamaterial enhances microstrip antenna gain microwaves. In this case, the measured maximum gain of the patch antenna with fss superstrate is 16. Rectangular patch antenna, circular patch antenna, square patch antenna, dielectric superstrate radome, resonate frequency, gain etc. In this paper, the design of a microstrip patch antenna utilizing superstrate layers for performance enhancement is presented. The proposed design involves the superstrate layer concept, proposed originally to increase gain of microstrip patch antennas. Broadband compact microstrip patch antenna design loaded by multiple split ring resonator superstrate and substrate. P, india abstract here we made an attempt to maximize the gain of microstrip patch antenna. Abstracta microstrip patch antenna can be readily installed on any. This completely planar antenna has a balanced feed which electromagnetically. A wideband and high gain cavity resonant antenna through utilizing a compact wideband aperture coupled mpa as radiator and fss superstrate has been designed. The complete design of acmpa and fss superstrate is discussed below.
The main objective of this work is to enhance the gain and directivity of the metamaterial microstrip patch antenna used for wireless point to point communication applications like dedicated short range communications dsrc. This paper describes an antenna design for wideband high directivity operation using an aperture coupled patch antenna as the feeding source and an fss frequency selective surface based structure as the superstrate for high directivity. The cma is used for the modelling, analysis and optimization of the proposed antenna to examine the underlying modal behaviour of the mtm unit cell and to guide mode excitation. Controlling radiation pattern of patch antenna using transformation. Proposed patch antenna design the performance parameters of the patch antenna with superstrate material are degraded slightly i. Structure of proposed patch antenna covered with dome shaped superstrate. In this paper, the gain of the single patch with the superstrate is compared to that of the single patch without the superstrate and the experimental results of 2spl times8 array antenna with the superstrate, and 4spl times8 array antenna without the superstrate are shown. Microstrip patch antenna design calculator 1 mosin i memon and 2 prof.
Improved microstrip antenna with his elements and fss. Investigation on wideband eshaped microstrip patch antenna with. Design of multidielectric layers microstrip patch antenna international journal of microwave and optical technology ijmot, vol. So, if the designer has a clear conception about the effect of changing substrate material and its thickness on the performance of the antenna, it will be easier to design an antenna. The design of the mushroomlike ebg structure was based on the highimpedance. Field of microstrip antennas with artificial magnetic superstrates. According to our antenna specifications antenna dimensions and other parameters can be changed to get optimized result using these equations. Printed monopole antenna pma pma have a simple structure and great ease of construction and installation. The microstrip patch antenna using a dielectric superstrate for having high gain and wide bandwidth, includes. The coaxial probe feeding is given to the substrate at particular location of the point where input.
A rectangular patch antenna rpa covered with a superstrate, also known as a loaded rpa, is illustrated in figure 1. A superstrate patch antenna for 60ghz applications ieee xplore. Design high directive rectangular microstrip patch antenna with. Study of the dielectric superstrate thickness effects on. Though number of analytical methods has been suggested for analysis of such a. Microstrip antenna with superstrate geometry equation of i figure3. This paper compares the gain of a single patch with superstrate layers with that of a single patch without superstrate layers and reports the experimental results for 6element, bit, array antennas with and without a superstrate layer. This proposed mtm superstrate, placed at optimum height of 15 mm from the. Silicone rubber superstrate loaded patch antenna design using.
The present invention relates to a microstrip patch antenna and array antenna using a dielectric superstrate, and particularly to a microstrip patch antenna using a dielectric superstrate and an array antenna using the same, for a wireless communication base station, a wireless local area network, satellite communications and satellite broadcasting. In the antenna development, the his elemental structure was mounted onto the antenna substrate around the radiation patch to suppress the surface wave, and the modified fss superstrate was suspended 20 mm above the radiating patch to improve the directivity. Doc design high directive rectangular microstrip patch antenna with superstrate darshan kakkar academia. The designed microstrip patch antenna has a planner structure and operates in industrial, scientific and medical ism band. A microstrip patch array antenna has been designed for 5. This proposed mtm superstrate, placed at optimum height of 15 mm from the designed rectangular patch antenna, enhances the gain of antenna in wireless transmission for satellite communications. The effect of changing substrate material and thickness on. Paper open access related content silicone rubber superstrate.
Somasekhar rao 4 1department of electronics and communication, mgit,hyderabad, ap, india 2 department of electronics and communication, vif, hyderabad, ap, india 3department of electronics and communication, biet,hyderabad, ap, india. It consists of a rectangular radiation patch, a substrate, a ground plane, and a superstrate above the radiation patch. High gain fss aperture coupled microstrip patch antenna. Shafaiinvestigation into the effects of the patchtype fss superstrate on the highgain cavity resonance antenna design ieee trans antennas propag, 54 2 2010, pp. The modified split ring resonator msrr is used in design. The dimensions of the ground plane is same as that of the substrate. Design of microstrip patch antenna with superstrate for. Shafaiinvestigation into the effects of the patch type fss superstrate on the highgain cavity resonance antenna design ieee trans antennas propag, 54 2 2010, pp.
The antenna under investigation the square patch antenna dimensions are wl2. In order to use this dng slab as a superstrate, the rectangular microstrip patch antenna has been designed to resonate at 31. The design of a novel balancedfed aperturecoupled patch antenna for millimeterwave applications is discussed. Gain enhancement of microstrip patch antenna using dielectric. The design is compared for two, three, and fourring split ring resonator loading. Rectangular microstrip antenna design at thz frequency for short distance wireless communication. The antenna composed of an array having 8 x 2 patches could achieve the. A superstrate patch antenna for 60ghz applications duixian liu, johannes akkermans and brian floyd t. The membrane antenna is designed using ansys hfss and consists of 6 layers.
As mentioned, the proposed antenna design is based on the balancedfed aperture coupled patch antenna 5 with a stackup from the reference 7. In the most basic form, a circularmicrostrip patch antenna consists of a radiating patch on one side of. The microstrip patch antenna mpa placed on the top pyralux substrate layer is excited by means of a longitudinal. Another important observation is made for multiple split ring resonator loading in superstrate and substrate of microstrip patch antenna. Circular patch antenna with superstrate thickness 3. The present invention provides a microstrip patch antenna and array antenna using dielectric superstrate in order to enhance the antenna gain by stacking radiating patches and dielectric layers.
A new metasurface superstrate structure for antenna. Jan 01, 2018 in the antenna design, the his elemental structure was mounted onto the antenna substrate around the radiation patch to suppress the surface wave, and the modified fss superstrate was suspended 20 mm above the radiating patch to improve the directivity. Broadband compact microstrip patch antenna design 5 c s. Nov, 2012 a high directivity broadband aperture coupled patch antenna using a metamaterial based superstrate abstract. The radiating patch and the feed lines are usually photo etched on the dielectric substrate. From the simulated results, we can see that antenna 1. Multiple split ring resonator loaded design in this section, we are going to discuss the modeling of split ring resonator metamaterial loading in superstrate and substrate of microstrip patch antenna design. Dielectric superstrate thickness variationon the characteristics of circular patch antenna v.
Gain enhancement of microstrip patch antenna using. Jun 03, 2015 in order to design a microstrip patch antenna at first the designer is to select the substrate material and its thickness. A high directivity broadband aperture coupled patch. A superstrate patch antenna for 60ghz applications ieee. Under unloaded conditions, the conventional patch antenna array resonates at ieee 802. The general structure of a pma is presented in figure 2, in which w 0 and l 0 are the antenna length and width, respectively, l and w are the length and width of the patch. A high directivity broadband aperture coupled patch antenna. It consists of a rectangular patch and a rtduriod 6006 superstrate with a. In the antenna design, the his elemental structure was mounted onto the antenna substrate around the radiation patch to suppress the surface wave, and the modified fss superstrate was suspended 20 mm above the radiating patch to improve the directivity.
A superstrate for microstrip patch antennas ieee xplore. Microstrip antenna or patch antenna basics in antenna and. Moreover, used in an fpc antenna, the proposed superstrate converts a linear polarization produced by a patch antenna into a circular polarization. In addition, features such as large bandwidth make this type of antenna suitable for pd application. To achieve the lowprofile structure, the superstrate layer should be thin and thus of a single layer.
Antenna 1 indicates the slot antenna where the superstrate and parasitic patches are both eliminated from the proposed design. The electrical properties of silicon rubber sealant are experimentally found out and its effect of using as superstrate on coaxial fed microstrip patch antenna using. The two slots play an important role in the antenna design. Keywords microstrip patch antenna, superstrate layer, egb structure. Design of the antenna element and simulation results. Introduction in many applications, patch antenna model is generally enclosed by a dielectric cover for protection and stealth purposes. Analysis and design of circular microstrip patch antenna at 5. Broadband compact microstrip patch antenna design loaded. The dimensions of the single element radiator have been reduced by incorporating an idc and mtm unit cell in the patch and ground plane, respectively. Details of the proposed antenna design are presented.
Microstrip antenna, artificial and patch antenna researchgate, the. The designs are also compared for different gap spacing between the rings. Design equations the following are the equations formulated for a layer of patch with superstrate 15. Initially the ground plane is placed below the substrate. Antenna 2 means the antenna design where only the metallic superstrate is excluded, while antenna 3 is the proposed design. Design of multidielectric layer microstrip antenna and superstrate effects the multilayer microstrip antenna structure involves addition of a superstrate layer over the substrate. This allows independent optimization of both the microstrip. The magnetic metamaterials demonstrate larger than unity. Pdf a superstrate patch antenna for 60ghz applications. In this proposed work, a novel square minkowski fractalshaped metamaterial mtm array is designed as a superstrate of rectangular patch antenna with defected ground structure. Geometry of patch antenna with metamaterial inspired superstrate. The substrate and superstrate material is same whose dimensions are 100. In this article, a dual band microstrip antenna design based on characteristic mode analysis cma using mtm superstrate is proposed for 5g wireless communication.
This is essentially an aperturecoupled patch antenna with two apertures slots and a balanced feed. In this video, i have explained microstrip antenna or patch antenna by following outlines. It is found that the gain measured of a single antenna with superstrate increases nearly 9 db at 60 ghz over its basic patch antenna. Design high directive rectangular microstrip patch antenna. The metamaterial loading and its results are discussed in section 3. Under the above design parameters, the radiated fields of the patch.
1037 14 624 1062 635 1507 942 1138 1515 1222 1141 988 476 569 689 692 837 1430 1465 480 279 169 614 763 1171 421 1419 14 1421 696 863