[PDF] Top 20 Rectangular Microstrip Antenna with Air Cavity for High Gain and Improved Front to Back Ratio

... A rectangular microstrip patch antenna using conventional Poly Tetra Fluride Ethelene (PTFE) substrate with air cav- ity is proposed and theoretically ...Considerably high gain ... See full document

... the cavity model, and is the normal to the side of the patch, ...the cavity is resonating in a conventional way, the electric field on the two sides of the patch is oppositely oriented, and therefore the ... See full document

... structure microstrip patch antenna with high front-to-back ratio is proposed for UHF-RFID tag at 870MHz on sapphire material as ...structure rectangular patch ... See full document

... E-shaped microstrip patch antenna analysed and compared with rectangular patch ...a high performance full wave electromagnetic (EM) field simulator for arbitrary 3D volumetric passive device ... See full document

... side. Microstrip patch antennas, particularly with rectangular patch, is widely used in mobile radio, and a variety of other wireless communications devices for which small size, light weight, and low ... See full document

... on rectangular patch ...polarized microstrip antenna fed along the diagonal, embedded with a square slot having three extended stubs for frequency ...the ratio of the operating frequencies can ... See full document

... Broadband microstrip patch antenna with air gap for wireless applications with improved bandwidth and ...The antenna have dual bandwidths of 860MHz ...designed antenna has four ... See full document

... the microstrip patch antennas are commonly used in the wireless ...Because, microstrip patch antenna has been very popular due to many advantages, like low profile and cost, light Weight and small ... See full document

... An antenna is an indispensable structure in many applications, systems and devices such as aircrafts, spacecrafts, satellites, ships, biomedical systems, cellular phones, global positioning ... See full document

... new antenna structure with lower side lobe pattern and higher gain was designed by combining a microstrip rectangular planar antenna array with the separated feed network ...first ... See full document

... width-to-length ratio (aspect ratio p = a/b in Figure 1) severely affects the co polarized gain and cross polarization characteristics of microstrip patch ...of microstrip ... See full document

... with 2:1 V.S.W.R. bandwidth of about 400 MHz and –13 dB at 10.4 GHz with 2:1 VSWR bandwidth of about 700 MHz. The radiation patterns are also found to improve in terms of directivity in both E and H planes by the ... See full document

... the antenna has directional patterns, low profile, high radiation efficiency and high front-back ...proposed antenna can be used as wearable antenna and WLAN base-station ... See full document

... a gain of ...the antenna array results in its direct application in the short-range radar which requires higher range resolution while the highly directional beam with high gain in the ... See full document

... GSM communication is used more and more widely. In GSM communication system, which is a cellular communication system, the base station is fixed, and the users are mobile. In some special cases, when there are many more ... See full document

... the antenna elements in a desired direction and reduce the power radiated in the undesired ...higher gain and less interference as compared to an individual antenna ...element. Antenna array ... See full document

... The impedance bandwidth over return loss less than -10dB for the proposed antennas is measured on vector network analyzer. The variation of return loss versus frequency of CRMA is as shown in Fig. 4. It is clear from ... See full document

... The antenna parameters can also be made improve with the help of multi-layer metamaterial structure in the superstrate ...of antenna while maintaining improvement in other antenna parameters like ... See full document

... an antenna is an arrangement of conductors that generate a radiating electromagnetic field in response to an applied alternating voltage and the associated alternating electric current, or can be placed in an ... See full document

... “Broad-band microstrip antennas using additional resonators gap-coupled to the radiating edges,” IEEE ...coupled microstrip IFF antenna,” PIERS Online, ... See full document