[PDF] Top 20 A High-Gain Broad-Band Waveguide Longitudinal Slot Array Antenna

... of high-gain broad-band waveguide broad-wall longitudinal slot array ...two-element slot array antenna has been analyzed, and ... See full document

... relatively high-fed line losses [3, 4]. The microstrip antenna arrays are used in order to overcome the aforementioned ...An array with circular polarization and low voltage- standing wave ratio over ... See full document

... Ultra-Wide Band (UWB) range is very promising in the area of wireless communication technology since the allocation of ...extremely high data transmission rates have made it a potential candidate in various ... See full document

... study, waveguide coupling technique is used for improving the ...bandwidth. Waveguide Coupled Microstrip Patch Antenna (WCMPA) [1] consists of two patches, one radiating patch which faces open air, ... See full document

... patch array antenna and a slot antenna capable of super high frequency (SHF) operation is designed and ...frequency band from 5GHZ to 10GHZ. A 1x2 and 2x2 antenna ... See full document

... different slot geometries in narrow and broad walls of standard rectangular ...specified band of frequency. Some of the slots like vertical slot in narrow wall and longitudinal ... See full document

... longitudinal slot in a rectangular waveguide was solved by the moment method, where the transverse variation of the tangential electric field on the apertures of the slot contains the correct ... See full document

... agility, broad band-width, feedline flexibility, beam scanning omnidirectional ...element antenna not ...in array configuration overcomes these ... See full document

... integrated waveguide (SIW) inclined slot array antenna is designed for a one-dimensional active phased ...The antenna prototype printed onto a single-layer Rogers 5870 is composed of 32 ... See full document

... A high power pattern reconfigurable antenna has been designed with a sectoral horn antenna and an E -plane waveguide ...and gain are similar for the metallic flaps and agile plasma wall, ... See full document

... or high orbits is very expensive, low-cost air devices such as balloons and mini-satellites flying at the low-orbit have recently appeared [1, ...GHz band for RX (down-link) and 14–14.5 GHz band for ... See full document

... simulated gain of the array antenna is remarkably increased to 12 dBi by using four parasitic patches surrounding the fed ...square slot is formed at the center of each parasitic ...proposed ... See full document

... UWB antenna with triple band-notched characteristic is proposed in this ...first band notch for 3.3–3.8 GHz (WiMAX) is created by cutting a line slot in the radiating ...second band ... See full document

... of all, Agilent 8722ES Network Analyzer is used to measure the return loss of the antenna and the result is shown in Figure 5. It can be seen that a good input impedance match characteristics of |S11| < −15 dB ... See full document

... (2) where α is the attenuation constant and β the phase constant, which can be calculated according to the microstrip line theory, and l is the electrical resonant length of the slot [18]. Y in slot can be ... See full document

... low gain and smaller bandwidth, make it more necessary for array ...patch antenna array was ...The antenna was designed to operate at 1.8GHz band, which is almost standard for ... See full document

... overall gain performance ...fades, high attenuation levels, and much atmospheric absorption should be considered while using ...of high-gain antennas in denser cells to reduce the propagation ... See full document

... of longitudinal shunt slot in rectangular waveguide using Method of Moments (MoM) ...the slot is a critical parameter in the design of waveguide slot array ...versus ... See full document

... It is clear that the radiation patterns do not meet the expectations. The main beams are not well defined, beams are broad, and there are significant side lobes. After careful observation, it was found that there ... See full document

... A broadband feeding technique for the uniplanar TSA on low-permittivity substrate is presented. With a substrate permittivity of 2.2 it is possible to establish a good trade- off between radiation characteristics and ... See full document