A slotted patch antenna for wireless strain sensing. Lowcost dielectric substrate for designing low profile. The proposed antenna design is compact and suitable at higher frequencies from 40100 ghz. The uslot patch antenna is versatile antennas that because of its features like wide bandwidth, multiband resonance and the ease of achieving different polarizations. Rizk casino is here to give you the the versatile u slot patch antenna chance to net up to. Uslot microstrip patch antenna for wireless application.
Uslot rectangular patch antenna for dual band application. In this paper, the length and width of u slots are optimized in order to achieve dualband and multiband operation. A lowprofile, highgain, and broadband uslot cut artificial magnetic conductor amc loaded patch antenna is presented in this letter. By the use of slot microstrip antenna can be used in many application. U slit loaded rectangular patch microstrip antenna.
Hence, ill present the basics, present some experimental results and try to give an idea of design parameters. The u slot patch antenna is versatile antennas that because of its features like wide bandwidth, multiband resonance and the ease of achieving different polarizations. A new dualband microstrip antenna with ushaped slot and a. Broadband microstrip antenna using variations of uslot has been widely reported. Dual and multiband rectangular microstrip antennas can be realized by cutting uslots inside the patch. It was firmly established that the uslot patch antenna can provide impedance bandwidths in excess of 30% for an airsubstrate thickness of about 0. Pdf dual and multiband rectangular microstrip antennas can be realized by cutting uslots inside the patch.
An h shaped antenna loaded with slits is shown in fig. The main objective of this thesis is to propose an effective. Thinprofile wideband and highgain microstrip patch antenna. Moreover, a defected ground structure is used to reduce the antenna size. Simulated results for u slot probe feed patch antenna is shown table 2. This design procedure is a set of simple design steps for the rectangular u slot mircostrip patch antenna on microwave substrates. Dual and multiband rectangular microstrip antennas can be realized by cutting u slots inside the patch.
In, a double uslot microstrip patch array for wiwax application for enhancing the gain has been addressed. This research first investigated the uslot patch antenna, its features and capabilities. In microstrip antennas, embedded slots can also be used to enhance the impedance bandwidth of a single band antenna. Fokhrul islam, journalinternational journal of computer applications, year2017, volume162, pages4448. A patch antenna radiates power in certain directions and we say that the antenna has directivity usually expressed in dbi. Although these antenna sensors demonstrate promising strain measurement results, the application is very limited due to lack of proper signal modulation scheme to enable wireless measurement at a relatively large interrogation distance.
However, in most of the reported work, an indepth explanation about the mode introduced by uslot and procedure to design uslot cut antennas at any given frequency is not explained. A broadband uslot rectangular patch antenna on a microwave substrate kf tong, km luk, kf lee, rq lee ieee transactions on antennas and propagation 48 6, 954960, 2000. The results of proposed antenna shows that by using proper slot size on patchs surface the performance of antenna can be improve. For an antenna to radiate it should attain a return loss more that 10 db. Emphasis is placed on experimental and simulation results for various u slot topologies, illustrating the antenna s. In this paper, a modified lstrip fed patch antenna is theoretically analyzed for wideband applications.
Design structure of the single uslot patch w 40mm c1 5mm. A lowprofile, highgain, and broadband u slot cut artificial magnetic conductor amc loaded patch antenna is presented in this letter. This research first investigated the u slot patch antenna, its features and capabilities. Broadband microstrip patch antenna using dual uslot with low profile has been proposed and analysis of results has been done by using ie3d simulator. Seconda cad optimization to design a low profile, dual band u slot patch antenna is. In this paper, the length and width of uslots are optimized in order to achieve dualband and multiband operation.
Dual u shaped slots are incorporated in the radiating patch and a maximum bandwidth of 16. Determine centre frequency, fo set center frequency as fo and the lower and upper frequency. Thinprofile wideband and highgain microstrip patch. Design structure of the single u slot patch w 40mm c1 5mm. Design of triplelayer double uslot patch antenna for.
Uslot patch antenna principle and design methodology. A slot antenna consists of a metal surface, usually a flat plate, with one or more holes or slots cut out. Another variant of patch antenna with the partially etched ground plane, also known as printed monopole antenna, is a very versatile antenna for dualband operations. Request pdf on apr 1, 2010, kai fong lee and others published the versatile uslot patch antenna vol 52, pg 71, 2010 find, read and cite all the research you need on researchgate. The versatile uslot patch antenna vol 52, pg 71, 2010. Figure 6 from double uslot microstrip patch antenna for. Pdf uslot rectangular patch antenna for dual band application. The design of single u slot antenna structure is presented in fig. However, in most of the reported work, an indepth explanation about the mode introduced by u slot and procedure to design u slot cut antennas at any given frequency is not explained. This variant has better matching than the standard patch.
Quad band uslot microstrip antenna for c, x and ku band. Even though the designed antenna was working normally at desired frequency, there was a possibility of some improvements. The wideband performance is achieved by strategically cutting two rectangular slots and inserting four strips onto a conventional amc ground plane. The uslot patch antenna was originally developed as a singlelayer, single patch wideband antenna. Modeling and analysis of single layer multiband uslot patch. In this paper we have seen the effect of slot on microstrip patch antenna. Broadband microstrip antenna using variations of u slot has been widely reported. Request pdf on apr 1, 2010, kai fong lee and others published the versatile u slot patch antenna vol 52, pg 71, 2010 find, read and cite all the research you need on researchgate.
In recent years, the uslot patch antenna established itself as a versatile, low profile and cost effective antenna that can be finetuned for ultrawideband operations. The basics of patch antennas, updated orban microwave. Mutual coupling reduction between closely spaced uslot. When the plate is driven as an antenna by a driving frequency, the slot radiates electromagnetic waves in a way similar to a dipole antenna. Circularly polarized singlelayer uslot microstrip patch antenna has been proposed. Fig 3 shows the return loss for the single uslot antenna which is the simulated result. The slot antenna, consisting of a narrow slit in a ground plane, is a very versatile antenna. Analysis and design of broadband uslot cut rectangular.
The standard rectangular microstrip patch is a narrowband antenna and provides 68 dbi gain with linear polarization. The suggested asymmetrical uslot can generate the two orthogonal modes for circular polarization without chamfering any corner of the probefed square patch microstrip antenna. Design and study of compact and wideband microstrip uslot. The u slot patch antenna was originally developed as a singlelayer, single patch wideband antenna. The design of single uslot antenna structure is presented in fig. U slot microstrip patch antennas were originally developed for bandwidth broadening applications. Slit loaded h shaped microstrip patch antenna for 2. Axial ratio and radiation pattern is also improved. In this paper, a modified double u slot planar microstrip antenna is designed, simulated and fabricated to operate at 2. Another variant of patch antenna with the partially etched ground plane, also known as printed monopole antenna, is a. Patch antenna is actually a patch antenna placed over a antenna base. The u slot patch antenna is versatile antennas that because of its features like wide bandwidth,multiband resonance and the ease of achieving different polarizations. Design of triplelayer double uslot patch antenna for wireless.
Seconda cad optimization to design a low profile, dual band uslot patch antenna is. In, a double u slot microstrip patch array for wiwax application for enhancing the gain has been addressed. From the fig 3, it can be shown that the uslot microstrip patch antenna at 5. The versatile uslot patch antenna ieee conference publication. In recent years, the uslot patch antenna established itself as a versatile, low profile and cost effective antenna that can be fine tuned for ultrawideband operations.
A microstirp patch antenna with double lslot for both wimax and wlan application is reported in. 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. The antenna can reconfigure its bandwidth from uwb to nb by switching the active ports state. Recently, it was found that the u slot technique can also enable the patch antenna to perform other functions, including. A broadband u slot rectangular patch antenna on a microwave substrate kf tong, km luk, kf lee, rq lee ieee transactions on antennas and propagation 48 6, 954960, 2000. Pdf design of wideband u slot microstrip antenna van cung. If the antenna had a 100% radiation efficiency, all directivity would be converted to gain. Modified double u slot penta band microstrip antenna for.
Mutual coupling reduction between closely spaced uslot patch. The uslot patch antenna is versatile antennas that because of its features like wide bandwidth,multiband resonance and the ease of achieving different polarizations. Actually, slot antenna is a radiating element formed by a slot in a metallic surface. The versatility of u slot patch antennas will be discussed in this paper. In all aforementioned proposals and designs, the main target of the researchers is to achieve multiband antenna by compromising either fabrication cost or effective electrical area of. Dual ushaped slots are incorporated in the radiating patch and a maximum bandwidth of 16. The antenna can reconfigure its polarization state using a switchable slot in the circular antenna. Recently, it was found that the uslot technique can also enable the patch antenna to perform other functions, including. May 18, 2010 the versatile u slot patch antenna abstract.
A microstirp patch antenna with double l slot for both wimax and wlan application is reported in. Improvement in gain and bandwidth of rectangular and u slot. A versatile reconfigurable antenna with integrated sensing. Figure 6 from double uslot microstrip patch antenna for wlan. Design and analysis of compact u slot microstrip patch. In this paper, we tried an antenna which consists of a patch having uslot, surrounded by closely spaced ground conductor and a cpw feed line it is designed in millimeterwave pozar1983 bhartia1991 frequency bands of 40 ghz. In recent years, the u slot patch antenna established itself as a versatile, low profile and cost effective antenna that can be finetuned for ultrawideband operations. The asymmetrical uslot antenna of parameters listed in table i has been fabricated and measured to compare the simulated results. In this antenna, one corner of the patch or sometimes one edge is grounded with a ground pin. The versatile uslot patch antenna semantic scholar. The asymmetrical u slot antenna of parameters listed in table i has been fabricated and measured to compare the simulated results. Mode theory cmt, it is possible to explain the uslot mpas wideband behavior and operational characteristics. This design procedure is a set of simple design steps for the rectangular uslot mircostrip patch antenna on microwave substrates. It has a triple band of frequency the propose antenna12for specific wimax application is shown below figure 6.
It has recently been shown that it can also be designed to perform a number of other functions. It has a triple band of frequency the propose antenna 12for specific wimax application is shown below figure 6. The versatility of uslot patch antennas will be discussed in this paper. In this paper, a comprehensive account is given on the development of this antenna. The main objective of this thesis is to propose an effective practical design procedure to design u slot antenna and. Uslot microstrip patch antennas were originally developed for bandwidth broadening applications. May 25, 2019 slot antenna differs with patch antenna in many aspects. The directivity of a patch can be estimated quite easily. Slot antenna differs with patch antenna in many aspects. In particular, the uslot patch 1 enable a single patch single layer microstrip antenna to attain over 30% impedance bandwidth. The graph is plotted for frequency in ghz versus return loss in db.
Frequency reconfigurability is obtained by using a varactor diode from 2 to 4 ghz. Analysis of slotloaded rectangular microstrip patch antenna. In particular, the u slot patch 1 enable a single patch single layer microstrip antenna to attain over 30% impedance bandwidth. The uslot patch antenna was originally developed as a singlelayer, singlepatch wideband antenna. Dual uslot loaded patch antenna with a modified lprobe feeding. This antenna covers all the operating bands of wlan and wimax but the gain is reduced due to more number of slots on the patch.
The radiation pattern of the uslot patch antenna is as shown in figure 4 and the calculated gain is 7. Double lslot microstrip patch antenna array for wimax and. 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. A complete analysis of which is presented through a culmination of uslot mpa simulations, circuit models, cmt analysis, and fabricated uslot mpa designs. Computer simulation technology cst software was used to design, simulate and optimization of antenna.
Unfortunately, the equations related to the cavity backed slot antenna are somewhat complicated and in my opinion dont give a good idea of how they work. Recently, it was found that the uslot technique can also. A practical slot antenna is the cavitybacked slot antenna. Design of double uslot patch antenna a low profile double uslots antenna for wimax operation has low return loss and bandwidth. By the use of slot we can enhance bandwidth, gain e. The use of thick and low permittivity substrates is the main reason for achieving wide impedance bandwidth. Design of double u slot patch antenna a low profile double u slots antenna for wimax operation has low return loss and bandwidth. Typical half wave patches have efficiencies well above 90%. The main objective of this thesis is to propose an effective practical design procedure to design uslot antenna and.
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