The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A novel design of ultra-wideband star shaped printed monopole antenna is proposed. A star shaped structure is realized by combining triangular shaped planar monopole patch with its inverted configuration. A detailed parametric study of the offset placement of two triangular shaped patches with respect to the patch centroids, variation in distance between the base of composite structure and the ground...
A new ultra-wideband planar microstrip antenna obtained by combining rectangular and circular shaped planar monopole patches is proposed. The optimum feed-line position is obtained individually for rectangular and circular patches by studying their surface current distributions. The rectangular and circular geometries are then merged to obtain a modified configuration. A parametric study for varying...
Broadband Spaced fed array fed using stacked configuration of E-shaped microstrip antenna fed by E-shaped microstrip antenna is proposed. The modified feeding structure in space fed array is used as in higher order arrays, peripheral patches are not equally fed using single microstrip patch. The fed 3 × 3 stacked E-shaped patch array yields an optimum gain of nearly 9 dBi with VSWR bandwidth of around...
A space-fed array fed by a proximity fed microstrip antenna for a broader bandwidth is proposed. The 1 × 3, 3 × 1, plus-shaped and 3 × 3 configurations are studied. A parametric study for varying distances between the fed-patch and the array is done and the optimum results for each configuration have been presented. A bandwidth of 1.1 GHz and a gain of 14.6 dBi is obtained in 3 × 3 space fed configuration.
In this paper a single fed elliptical microstrip antenna to realize circular polarization in 1000 MHz frequency band is proposed. It yields axial ratio bandwidth of 10 MHz (∼1.2%). A sequentially rotated gap coupled configuration with a single parasitic patch along x axis is studied. Thereafter, gap coupled array along x and along y axis, i.e., a plus shaped array is studied to increase the ARBW....
A novel design of rectangular Microstrip patch antenna backed by C shaped defected ground plane (DGP) is presented. First, effect of adding a slot in ground plane on fundamental mode is studied. A parametric analysis is performed by varying the slot width and changes in current distribution is observed. From this observation, approximate equations to calculate the resonant length of C shaped slot...
Higher order space-fed arrays have limited gain due to unequal excitation of patches when fed by a single microstrip patch. Hence, a broadband space-fed array with a stacked microstrip array as the feed element is proposed. An array of rectangular microstrip antennas is placed on top of a co-axially fed broadband E-shaped patch antenna to realize a multi-layer stacked microstrip array. First, various...
Novel design of Psi-shaped printed monopole antenna consisting of modified feeding structure is proposed. A detailed parametric study for various antenna parameters that forms the Psi shaped patch is presented. The pair of vertical slots in Psi shaped patch optimizes the antenna bandwidth till 4 GHz of frequency range whereas position of horizontal slots that constitutes modified feeding structure...
A dual-band stub-loaded microstrip reflectarray antenna with microstrip antenna feed is proposed. The 1 × 3, 3 × 1 and plus-shaped reflectarrays have been studied. A parametric study for varying distances between feed patch and the array has also been done. In dual bands, an optimum gain of more than 8 dBi is obtained in plus shaped array configuration.
Ultra-wide band response in planar monopole microstrip antenna is realized due to coupling between fundamental and higher order patch modes. In the reported literature, formulation in resonant length at fundamental and higher order modes of planar monopole patch is not given. In this paper, by studying the surface current distributions for planar monopole rectangular microstrip antenna, a formulation...
Broadband reflectarray microstrip antenna with an array and feed element consisting of E-shaped patches is proposed. The reflect array configurations namely, 1 × 3, 3 × 1, plus-shaped and 3 × 3 arrays have been studied. A parametric study for varying distances between the fed E-shaped patch and array of E-shaped patches for varying slot dimensions is presented. The maximum gain of more than 12 dBi...
A novel design of dual and wide band coplanar waveguide fed triangular microstrip antenna backed by rectangular slot ground plane in L-band and in S-band is proposed. A parametric study for variation in vertex angle in triangular patch and the effect of variation in strip width over length of the microstrip line is presented. The proposed configuration yields more than 400 MHz (>22%) of bandwidth...
Broadband U-slot cut rectangular microstrip reflectarray antenna with a U-slot cut rectangular microstrip antenna as a feed is proposed. The 1 × 3, 3 × 1, plus-shaped and 3 × 3 patch arrays have been studied. A parametric study for varying distances between fed patch and the array and for varying U-slot dimensions in reflect array patches is presented. An optimum gain of nearly 11 dBi with bandwidth...
To cover Wi-MAX and WLAN frequency bands, variations of coplanar waveguide fed hexagonal shape microstrip antennas backed by hexagonal slot ground plane in 3500 MHz frequency range is proposed. In the first variation of hexagonal shape microstrip antenna, an impedance bandwidth of more than 100% is obtained whereas 300 rotated variation of hexagonal shaped patch yields increased bandwidth of nearly...
Analysis of ultra-wideband antenna for Sectoral shaped microstrip patch for angle increasing from 90° to 330°, for realized bandwidth and gain is presented. To optimize the individual patches, center or offset feed microstrip line is used. A bandwidth of around 15 GHz is obtained, in Sectoral patches with angle increasing from 90° to 180°, whereas for Sectoral patches with angles increasing from 210°...
Broadband variations of slot cut shorted 60° Sectoral microstrip antenna using multi-resonator technique, are proposed. The slot tunes the spacing between TM1/41 and TM1/4,0 modes of the shorted patch, to yield broader bandwidth. The gap-coupled variation of slot cut shorted 60° Sectoral patch with shorted 60° Sectoral patch yields bandwidth of more than 900 MHz (∼75%) whereas gap-coupled variation...
Microstrip reflectarray antenna consisting of rectangular microstrip antenna as the feed and an array consisting of edge shorted rectangular patches, is proposed. Four reflect array configurations namely, 1 × 3, 3 × 1, plus-shaped and 3 × 3 arrays have been studied. A parametric study for varying distances between the fed patch and array of patches is presented. An optimum gain of around 8.8 dBi with...
Modified rectangular shape ultra wide band microstrip antenna with microstrip line feed is proposed. The effects of tapering structure on the realized bandwidth are discussed. The tapered end configuration yields bandwidth of 15.4 GHz with a peak gain of 2 dBi. Further, the effect of replacing the tapered end structure with an elliptical base structure is investigated. The elliptical base antenna...
Broadband 90° isosceles triangular microstrip antenna derived from equivalent equilateral triangular microstrip antenna, is proposed. The parametric study for variation in isosceles angle from 50° to 90° is presented. The increasing angle tunes the spacing between TM10 and TM11 modes of the triangular patch to realize broadband response. The simulated and measured bandwidth of more than 600 MHz (>...
Rectangular slot cut compact shorted 90° Sectoral Microstrip Antenna is proposed. An analysis to investigate the effect of rectangular slot which yields broader bandwidth is presented. The slot does not introduce any new mode but it reduces the resonance frequency of second order TM1/4,1 mode of the shorted patch. Due to its coupling with fundamental shorted TM1/4,0 mode, yields bandwidth of more...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.