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Various configurations of slotted and shorted 60° Sector microstrip antennas for wider bandwidth are discussed. Slot tunes the spacing between shorted patch TM1/4,1 and TM1/4,0 resonant modes, that gives bandwidth of more than 800 MHz (>60%). The surface current distributions at modified shorted resonant modes were studied. Based on current variations against slot length, formulation in resonant...
In circularly polarized radiation, the rotational orientations of the transmitter and the receiver antennas are unimportant in relation to the received signal strength. In this paper, a center square slot cut elliptical patch microstrip antenna to realize a tunable circular polarization in 1000 MHz frequency band is proposed. It yields axial ratio bandwidth of nearly 1.2% over tunable range. A rectangular...
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...
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.
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...
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...
Variations of Coplanar Waveguide fed elliptical patch microstrip antennas with elliptical slot ground plane in 4000 MHz frequency band is proposed. The first variation of elliptical shaped microstrip antenna yields impedance bandwidth of more than 117% that covers Wi-MAX and WLAN bands. Further another variation in which elliptical patch and elliptical slot ground plane rotated by 900 is proposed...
The variations of Coplanar Wave guide fed hexagonal micro strip antennas with hexagonal slot ground plane are proposed in 3000 MHz frequency band. The first variation of hexagonal shaped micro strip antenna yields impedance bandwidth of more than 108% which covers Wi-MAX and WLAN bands. The hexagonal shaped patch is rotated in 300 backed by the same ground plane. This configuration yields higher bandwidth...
NRP1 physically interactswithalpha enolase, Myh10, Myh9, EEF1alpha1 and FlnA by anti bait coimmunoprecipitation (View interaction)FlnAandNRP1colocalizebyfluorescence microscopy(View interaction)NRP1andrab11colocalizebyfluorescence microscopy(View interaction)NRP1physically interactswithMyh10, Dync1h1, Myh9 and EEF1alpha1 by anti bait coimmunoprecipitation(View interaction)NRP1andFlnAbindbyisothermal...
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