Meander line patch antenna

Modern uwb antennas and equipment where cc and cd are expressed in terms of line width w, substrate thickness d, and relative permittivity. Size reduction and bandwidth enhancement of aperture. A simple analytic formula, found in the literature for calculating the resonant frequency of a meander line dipole antenna mda in free space from its. Meander line loaded tunable patch antenna wo2002060007a1 en 20010125. A capacitive load cload and parasitic patch with the shaped ground are applied to.

Meanderline slotloaded highsensitivity microstrip patch. Section i provides the overview of microstrip meander line reconfigurable. A microstrip meander line reconfigurable antenna for. To determine the layout of the array and achieve the required antenna impedances and interconnecting crlh transmission line lengths, the simulation tool momentum in the advanced design system ads software 14 was used. Barros florida international university, 1991 miami, florida professor tadeusz babij, major professor the mininumerical electromagnetic code mininec program, a pccompatible version of the powerful nec program, is used to. Bandwidth enhancement of a dual band planar monopole. The proposed mpsa was designed by etching the mls along the radiating edge of the patch antenna, and it enhanced the relative permittivity sensitivity with an additional effect of miniaturization in the patch size by increasing the slot length. By using the patch antenna the return loss, gain, directivity. Inserting a slot in the ground plane between the antenna elements is a simple method to reduce the mc, while adding the mls in the slot of the ground can further reduce the mc.

In order to meet the demand of developing communication equipment the research of antennas focuses on some particular aspect, for instance, how to reduce the size of antennas while maintaining. A patch antenna is a narrowband, widebeam antenna fabricated by etching the antenna element pattern in metal trace bonded to an insulating dielectric substrate, such as a printed circuit board, with a continuous metal layer bonded to the opposite side. The microstrip patch antenna calculator determines the length l and width w of a rectangular microstrip patch antenna for a given resonant frequency or vice versa. Meander line slot is loaded to the antenna patch to reduce the dimension of the proposed antenna design. The antenna is fed from an intermediate point a distance from the grounded end. Hello hanaf meander line antennas are normally lambda2 or lambda4 antennas. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. If the ratio lw is close to unity, the radiation pattern will be symmetric but may not provide a resonable input impedance. The meanderline antenna concept is to fold the conductors back and forth to reduce antenna physical size. Meander line is a kind of patch antenna and it was included in the literature in 1991 by rashed and tai. The antenna is loaded with traditional coplanar waveguide inductor and capacitor elements. The electrical small antenna defines as the largest dimension of the antenna is no more than the onetenth of a wavelength 5. One standard meanderline antenna and other two nonstandard meander antennas have.

In this paper, a classic meander line is investigated for a single band operation with wider bandwidth. This paper presents optimization problem formulations to design meanderline antennas for passive uhf radio frequency identification tags based on given specifications of input impedance, frequency range, and geometric constraints. The operation of classic meander line is changed by two p i n diodes which helps antenna to resonate at different frequencies. The antenna consists of a meander line which acts as a capacitively loaded patch. The coupling element and meander line antenna affect size of antenna and radiation efficiency in antenna structure, it has been introduced in background 36. A detailed analysis is done in terms of different substrates and thickness. Implementation of slotted meanderline resonators for. Design of meander line antenna for operating frequency of. The antenna was simulated on a rogers rtduroid 5880 substrate with. Soh designed a planer meander line antenna to operate in a frequency of 2. What is meander line antenna meander line patch antenna antenna basicantenna theory duration. Experimental results and validation todetermine if thedesign in fig. It consists of a monopole antenna running parallel to a ground plane and grounded at one end. Cad of microstrip antennas for wireless applications sainati.

Us6404391b1 meander line loaded tunable patch antenna. It might be noted that the coupling between patch and meander line resonator is a combination of inductive lc and capacitive cc coupling as shown in section 3 of figure 5. A meander line loaded antenna mla that utilizes more two or more layers of meander lines to greatly extend the operating frequency range. A highsensitivity microstrip patch sensor antenna mpsa loaded with a meanderline slot mls is proposed for the measurement of relative permittivity. As a result of this process, it is obtained that diminishing. Design and analysis of a folded meander dipole antenna. The implementation of a slotted meanderline resonator smlr is done by creating defect in the microstrip structure particularly designed for bandnotch function. Analysis and design of meander line dipole antennas. The patch antenna, microstrip transmission line and ground plane are made of high conductivity metal typically copper. Hi all, i will like to know the basics of designing a meander line antenna.

Design and comparative study of meander antenna and microstrip. Design of a miniaturized meandered line antenna for uhf. A novel meander line microstrip logperiodic dipole antenna for dualpolarized radar systems lizhong song1, yuming nie2,andjunwang1, abstracta novel logperiodic dipole antenna for dualpolarized radar systems is presented. An invertedf antenna is a type of antenna used in wireless communication. In this application, there is a need for directive transponders to select properly the target tag, which in turn must be ideally isotropic. A meander line loaded antenna provides a wide instantaneous bandwidth with a first planar conductor extending orthogonally from a ground plane, a second planar conductor substantially parallel to the ground plane and separated from the first planar conductor by a gap, a meander line interconnecting the first and second planar conductors across the gap, and a third conductor connecting the second planar conductor to ground. Meander line antenna with artificial magnetic conductor.

In this article, the design and analysis of a meandered line monopole antenna with a defected ground structure dgs for rfid applications are investigated. The coupling aperture is usually centered under the aperturecoupled feedpatch, leading to lower cross. The gain of the antenna is efficient for meander line antenna to operate well at 2. Us6373440b2 multilayer, wideband meander line loaded. Analysis of single band and dual band graphene based patch antenna for terahertz region.

Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. Pdf this paper presents the design and mathematical analysis of a fully efficient meander line edged microstrip patch antenna with square. The resonator is designed to block the surface current at the resonant frequency of the two patch antennas coupled along hplane and operating at a frequency of 4. The resonant frequencies, bandwidth, and gain characteristics of a microstrip patch antenna were compared when single and dual mlss were loaded in various locations in the patch 35. Conception of patch antenna at wide band okeefe proposed a new meander line dipole where they applied three methods to calculate the efficiency of. What is meander line antenna meander line patch antenna. The first resonance of meander dipole antenna is at 200 mhz.

The proposed structure consist of rectangular meander line on radiating. In the proposed antenna, the linearly polarized meandered line acts as the main radiator whereas the inverted cshaped patch acts as a parasitic element. Meandering the patch increases the patch over which the. The antenna consists of a meander line which acts as a capacitively loaded patch with complementary split ring resonators csrrs cell etched on the ground plane. Design of meanderline antennas for radio frequency. The meander line loaded tunable patch antenna has physical dimensions much smaller than one quarter wavelength at a predetermined operating frequency and is tuned by selectively electrically adding and removing at least one of the portions of the meander line using the meander line switching means. Recently, a meanderline slot mls has been applied to microstrip patch antennas for miniaturization and multiband operation. Design of a meandered line microstrip antenna with a.

The tapered meander slot antenna was derived from 3 in which a meander line was tapered to achieve operation at lower frequencies. Meander line antenna is a type of the microstrip antennas. Pdf design and analysis of a meander line cornered microstrip. Paper titled meanderline slotloaded highsensitivity microstrip patch sensor antenna for permittivity measurement is a good paper for readers and new researchers. Circular shaped fractal pifa antenna provides high efficiency and gain 7. Microstrip antenna design handbook garg, bhartia, bahl, ittipiboon 2. The meander line antenna was proposed by rasheed and tai for reducing the resonant length4.

The idea is to fold the antenna element back and forth to make the overall antenna shorter. What is meander line antenna meander line patch antenna youtube. The antenna of the present invention can achieve an operating frequency range of 100. The proposed antenna employs meander line technology and matched loads. It is not easy to obtain a good impedance by selecting the position of the shorting posts.

Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. Mutual coupling reduction between patch antennas using. The microstriplinefed patch antennas ensure several stunning properties. The antenna is center fed and it is symmetric about its origin.

Research article mutual coupling reduction between patch antennas using meander line qian li,1 chong ding,1 ruichao yang,1 mingtao tan,2 gangxiong wu,1 xia lei,1 xuebing jiang,1 shuanzhu fang,1 minzhi huang,1 yubin gong,1 and yanyu wei1 1school of electronic science and engineering, university of electronic science and technology of china, chengdu 610054, china. Meanderline antenna is a truly transformation of monopole antenna. Coupling between the patch and the feedline is made through a slot or an aperture inthe ground plane. Although the line techniques can successfully rewx duce the transverse size of the antenna, the longitudinal size is still large. Click here to go to our page on circular patch antennas new for september 2018. Photograph of the meander line antenna with the coupled patch. Pdf design of meander slotted patch antenna for wireless. The most common type of microstrip antenna is the patch antenna. The design has two advantages over a simple monopole. Design and analysis of meander microstrip antenna at. Combination of horizontal and vertical lines forms turns. By inserting the meander line resonator between the patch antennas with the edgetoedge distance less than.

Due to reduction in meander lines, antenna resonates at higher frequencies. Some of the recent literature proposing the meanderedlinefed which is a type of microstriplinefed patch antenna has received potential interest among the researchers in antenna design since this technique is less cumbersome in widening the bandwidth of patch antenna. Design of meandered pifa antenna for wireless application. What i will also like to know is how skycross seem to be able to use this design technique to control the radiation patterns and obtain a broadbanddualabnd antenna with acceptable gain. Mutual coupling reduction between closely placed microstrip. The dipolemeander class creates a meander dipole antenna with four dipoles. The former one is more dominated because the meander line is coupled via non radiating edge of the patch antenna. However, the uhf tag antenna has a narrow bandwidth performance that involves a ground plane which increases the design complexity. Antennas using patches as constitutive elements in an array are also possible. A capacitive load cload and parasitic patch with the shaped ground are applied to the.

The design of meander line antenna is a set of horizontal and vertical lines. The 3d view for gain of meander line antenna is also shown in fig. Meander lines mls in two configurations are presented to reduce the mutual coupling mc between two microstrip patch antenna elements. Design and simulation of meander line antenna for wireless. A novel electrically small compact meander line antenna is reported. The reduction in length to every stairstep of meander line is 1. Pdf a modified meander line microstrip patch antenna. This inductance is important because electrically small antennas can have a signi. The radiation pattern of the meander line antenna was shown in fig.

Meandering the patch increases the patch over which the surface current flows. A novel meander line microstrip logperiodic dipole. The patch is of length l, width w, and sitting on top of a substrate some dielectric circuit board of thickness h with permittivity. Electrical small meander line patch antenna ieee conference. The resonant frequency of the conventional meander. The initial length of meander line is 9 mm and it reduced to 8 mm or 7 mm.

In the first configuration, one ml is inserted in the slot of the ground and a. The antenna has shown significantly size reduction in comparison to a conventional microstrip patch antennas. The antenna characteristics before and after applying a meander line slot are numerically investigated. Design and analysis of a meander line cornered microstrip patch. Therefore, in our work, we make a study on the meanderline antenna. Deschamps in 1953, but didnt become practical until the 1970s when it was developed further by researchers such as robert e. A novel multiband planar invertedf antenna with meander line and slots applied on the radiating patch has been introduced. Meander line antenna is the most usage of antenna that use in design of the applications such as rfid and wlan. The objective of paper is to design a meander line antenna for wlan application that is 2. A seriesfed microstrip patch array with interconnecting. Compared to the reference antenna design, using a meander line slot loaded to the antenna patch, it can achieves several performance. Microstrip meander slot antenna is mostly utilized. A triangular patch antenna for uhf band with microstrip. The thickness of the ground plane or of the microstrip is not critically important.