[PDF] Top 20 Defected ground structure for beam steering array antenna applications

... steerable antenna with tunable phase shifter continues to be a popular choice of radio operator to provide such ...the structure more complicated and ...for antenna designer to find an alternative ... See full document

... In many wireless communication systems it is necessary to design antennas with very directive characteristics (high gains) to meet the demands of long distance communication that may not be achievable by a single element ... See full document

... element antenna for GSM applications has been ...an array to improve the performance of wireless ...of defected ground structure has also been proposed to achieve greater ... See full document

... these applications, microstrip antennas are preferred because of its advantages such as low profile, lightweight and easy design with multifrequency ...microstrip antenna is surface wave, which is excited ... See full document

... the ground plane is disturbed and resulting in a controlled excitation and propagation of electromagnetic waves through the ...single antenna, 2x2 array antenna and 2x2 array ... See full document

... optical beam-forming of antenna arrays and filtering [1, ...photonic structure and the overall system performance is a key point in designing such mixed microwave photonic ...for antenna ... See full document

... between antenna array elements, and reducing unwanted responses (similar to ...phased array, improve the performance of couplers and power dividers, and reduce the response to out of hand signals for ... See full document

... the ground plane of a planar transmission ...different applications, as for instance, cross polarization, mutual coupling reduction in antenna arrays and harmonic ... See full document

... Nowadays, mobile communication plays an important role in our civilization and becomes part of our daily life, and new wireless communication methods and services have been enthusiastically adopted by people throughout ... See full document

... like array configuration [3], different feeding [4], and double L and U-slots in a patch with proper placement [5, ...patch antenna with distinct shapes [7, 8], fractal geometry [9], and metamaterial ... See full document

... microstrip antenna with an air gap between the dielectric substrate and ground plane [11] is studied and shown in Figure ...microstrip antenna. The thickness of the microstrip antenna ... See full document

... with Defected Ground Structure ...deserted ground structure (DGS) is actualized on Triangular Patch Linear Array microstrip radio wires to suppress surface waves and enhance the ... See full document

... radiating beam to the desired direction, which in return can assure high gain and maintain high ...cells antenna array is designed, in which the metamaterials are periodically printed on the FR4 ... See full document

... microstrip array shown in Figure 2 and two element array antenna is extended to four element microstrip array shown in Figure ...narrow beam and sufficient space for the feed ... See full document

... tree structure antenna with defected ground structure & CPW ...proposed antenna, Swasthik layer defected ground structure has been considered to achieve ... See full document

... UWB antenna. The antenna is fabricated on an inexpensive dielectric material FR-4 substrate with dielectric constant of ...the ground plane on the other side. Elliptical shape ground plane is ... See full document

... new Defected Ground Structure (DGS) consisting of I-shape slot in ground has been presented to enhance the bandwidth of the Microstrip Patch Antenna ...proposed antenna than ... See full document

... the antenna beam steerable, the PRS of the cavity must be designed in such a manner that a continuous phase variation is going to be ...cavity antenna system shown in ...slot antenna, a ... See full document

... Figure 1. Geometry of: (a) prototype of the proposed antenna, (b) the proposed antenna, (c) the ground of the proposed antenna, (d) close view of the U-shaped slot. (L1 = 2.5 mm, L2 = 2 mm, L3 ... See full document

... In general there are four basic parts in microstrip antennas [15] like patch, dielectric substrate, feedline and ground plane. The MRPA with full ground is geometrically presented in figure 1(a). The patch ... See full document