Design and study of compact and wideband microstrip uslot. Pdf a broadband uslot rectangular patch antenna printed on a microwave. Geometry of dual frequency rectangular microstrip patch. Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. Variations of u slot cut rectangular microstrip antennas, in ieee antennas and. Top view of proposed u slot microstrip antenna l48. The basic design uses a rectangular u slot microstrip patch antenna on suitable microwave substrates 1. These antennas can be capable of work under various wireless applications such as wimax, wlan, wifi, bluetooth, satellite communication and radar communication 12.
The stacked geometry involves more than one patch and more than one dielectric layer, with the result that the antenna thickness is increased. The patch antenna with ut slot is used for wide band application with very low return loss. By using the shorting pins or shorting walls on ushaped patch, uslot patch, or lprobe feed patch antennas, wideband and dual band antenna with electrically small in size have been reported in 8,9. A low and high dielectric material combination are. Paper presents a singlelayer broadband rectangular uslot microstrip patch antenna provide 10%40% impedance bandwidth even with nonair substrate. Wideband radiation reconfigurable microstrip patch antenna. Uslot microstrip antenna for amateur radio application.
Shivnara yan et al slot loaded rectangular microstrip patch antenna 425 the present work, the patch is fed by coaxial cable 50 ohm. It has recently been shown that it can also be designed to perform a number of other functions. The proposed antenna has a wide matching input impedance with a return loss less than 10db. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board.
Therefore in order to work on wideband and for the challenge to overcome the narrow bandwidth the u slot inclusion on the patch surface is introduced. The proposed antenna geometry describes a coaxial fed rectangular patch. Wideband uslot microstrip patch antenna array request pdf. A cpwfed wideband and multiband rectangular microstrip. Two modified designs are proposed to achieve a wide bandwidth operating in wideband communications.
The slot antenna, consisting of a narrow slit in a ground plane, is a very versatile antenna. This paper presents a frequency scanning array antenna in cband used for radar applications. With proper dimensions for the second uslot bandwidth as high as 49. In my previous tutorial on hfss, i give an idea of cutting a slot in a rectangular patch so if you dont know how to cut u slot in patch then go to. An ultra wideband uwb microstrip diamond slotted patch antenna with enhanced bandwidth is presented in this paper. Analysis of slotloaded rectangular microstrip patch 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. The new antenna is a probefed rectangular microstrip patch antenna on a permittivity. The design and measured results of a wideband antenna array of four uslot rectangular patches are presented.
Wideband rectangular microstrip patch antenna with uslot. The uslot patch antenna structure consists of a patch, ushaped slot, a ground plane and coaxial feed lines. It consists of a rectangular patch with ushaped slot on one side of the substrate and a finite ground plane on the other side. Wideband u slot microstrip patch antenna array, appysis of slot coupled microstrip patch antennas a citeseerxa patch antenna is literally a patch of metal or other conductor on a flat surface. The bandwidth of truncated rectangular microstrip patch antenna with h slot is 21. A novel wideband antenna design using uslot springerlink. This antenna is applicable for the wimax application which is centered at frequency 5. Rectangular ring shorted microstrip antenna for 850 mhz.
In this article, uslot loaded circular microstrip patch antenna is successfully designed and simulated for dual frequency wideband operation. Hfss tutorial 3microstrip patch antenna with a cutting u. Design and simulation of eshape microstrip patch antenna. A circular microstrip patch antenna is designed to operate at 2.
Ultra wideband microstrip diamond slotted patch antenna. With modification, it is amenable to waveguide, coplanar waveguide cpw, coaxial, slot line, or microstrip feeding schemes and has been used in all aspects of wireless and radar applications. Design of wideband u slot microstrip antenna semantic scholar. Although, this antenna is best known for its wideband characteristics. The uslot patch antenna was originally developed as a singlelayer, singlepatch wideband antenna. In this paper, wide band truncated rectangular microstrip patch antenna with h and u slot is proposed. The uslot patches are proximity coupled by a microstrip feed line terminating with.
First a rectangular uslot patch antenna proximity fed by a double. Rajesh khanna coaxial fed rectangular microstrip patch antenna for 5. U slot loaded wideband rectangular microstrip patch antenna for. Operation principle to design a rectangular patch microstrip antenna operating at wideband the patch length l and width w should be selected correctly. In this paper slotted rectangular patch antenna is designed for wideband applications. Operation principle to design a rectangular patch microstrip antenna.
Pdf a broadband uslot rectangular patch antenna on a. Abstract in this paper, microstrip antenna designed for wide band application by cutting a u t slot in the patch. Wideband rectangular microstrip patch antenna with uslot abstract. The design employs thick substrate and h and u slot shape patches techniques to meet the design requirement. A wideband single layer coaxially fed rectangular microstrip patch antenna with a double uslot on the patch is presented.
By controlling the phase shift of applied currents through these probes, the antenna can be set to excite either the sum or the. This antenna is developed to widen the narrow bandwidth of a microstrip rectangular patch. Design and analysis of compact u slot microstrip patch antenna 9 figure 1. Design and analysis of wideband uslot patch antenna with. The performance parameters of the modified structure are compared with that of a simple circular microstrip patch antenna excited under similar conditions. Effect of feed point location in u slot patch antenna.
Additional benefits of patch antennas is that they are easily fabricated making them cost effective. This paper presents the design and the achievement of a coplanar compact broadband microstrip antenna. Abstract in this study, a 28ghz uslot rectangular microstrip patch antenna for 5g applications is proposed. Hitender guptadesign and study of compact and wideband microstrip uslot patch antenna for wimax.
Lee, wideband rectangular slot antenna for personal wireless communication, ieee antennas propagat mag 44 2002, 146155. Wideband double uslot patch antenna for 1 ghz to 2 ghz. The uslot antenna concept has been used in patch antenna designed to reduce antenna size. This study present a simple and slotted wideband microstrip patch antenna for wireless communication system. Comparing both designs, the eshaped is much simpler to construct by only adjusting length, width and position of slots. The effects of varying physical parameters are investigated with a goal of understanding the coupling among different resonators. A slotted rectangular microstrip patch antenna for.
Bandwidth broadening techniques for microstrip antennas have been studied for a number of years. Truncated rectangular microstrip antenna with h and u slot. Conclusion the technique of using an eshaped slot in the ground plane for a rectangular microstrip patch antenna with cpw feeding is to obtain both multiband and wideband characteristics in a. Since the slot is thin, the voltage can be sinusoidal with zero voltage across the ends of slot. Chen, broadband cpwfed square slot antennas with a. The radiation pattern of the uslot patch antenna is as shown in figure 4 and the calculated gain is 7. Simulation results based on hfss package on return loss and e and hplane radiation patterns are provided. The uslot patches are proximity coupled by a microstrip feed line terminating with novel spl pishaped stubs. A wideband frequency scanning microstrip antenna array.
It is found that the uslot patch antenna can be designed to attain 50% impedance bandwidth as well as. Here in this paper we used uslot inside the microstrip patch, whose dimensions are calculated mathematically and the same is explained in the proceeding chapters. Antenna model the geometry and detailed dimensions of proposed antenna are shown in fig. In this paper, a comprehensive account is given on the development of this antenna. A popular method is the use of parasitic elements, either in stacked geometry 1 or in coplanar geometry 2. Design and analysis of compact u slot microstrip patch. Rectangular planar antenna using uslot for bandwidth. The proposed antenna is simulated in cst microwave studio and fabricated for measurements. A 28ghz uslot microstrip patch antenna for 5g applications. Uslot patch antenna principle and design methodology. Design and simulation of wideband microstrip ut slot. Uslot patch wideband microstrip antenna springerlink.
In my previous tutorial on hfss, i give an idea of cutting a slot in a rectangular patch so if you dont know how to cut uslot in patch then go to hfss tutorial no 2 today i try to simulate that. Approaches like u slots or rectangular slots as discussed in34 5 take an undisturbed tm 10 or higher as an essential starting point. Uslot microstrip antenna provides bandwidth up to 30% while eshaped patch antenna can increases bandwidth above 30% compared to a regular rectangular patch antenna. The antenna structure is designed, optimized and miniaturized by using momentum.