[PDF] Top 20 A Composite Dipole Antenna Array with Direct Feed

... the antenna plays a crucial role in improving port ...an antenna in simulation, which leads to fairly fine middle feed, thus port impedance is supposed to be ...the antenna increases by ... See full document

... log-periodic dipole array (LPDA) antenna, which acts as a driven element for a quasi-Yagi antenna, is designed and presented to improve the bandwidth of a planar quasi-Yagi antenna ... See full document

... Spiral antenna is widely used in satellite communications due to its wide band frequency response, the circular polarization, and the directive beam ...the antenna, it suffers from certain limitations, ... See full document

... gain antenna design is very crucial, planar Yagi-Uda antennas are most popular end-fire antennas for their high gain ...the dipole antenna. Therefore, the gain of the dipole antenna is ... See full document

... The antenna in [11] with a modified annular ring slot and modified printed arc dipole array has a low profile, but the bandwidth is only ...the dipole array in [16] and ...the ... See full document

... the antenna scattering ...a dipole antenna and a monopole array have been studied in ...horn antenna and reflector antenna has also been performed [8, ...phased array ... See full document

... (PCB) antenna is widely used for communication systems. Microstrip antenna array is widely used due to its several advantages, such as low profile, light weight, and low cost, ...Those array ... See full document

... The antenna feeding structure consists of two coaxial cables, in order to realize an infinite balun which provides the required broadband input matching ... See full document

... phase array antenna has already been used for military applications in the past several decades such as ...A dipole present simplicity design, high directivity, cheap component, easy to fabricate ... See full document

... a feed network arrangement, so in this paper we used an array to develop the performance of this antenna ...patch antenna is the Frequency of operation ( fr ...the antenna must be ... See full document

... or dipole antennas as array elements ...one dipole antenna which has omnidirectional radiation pattern in the azimuth ...short dipole antenna that has a photodiode which is ... See full document

... the antenna as ...build antenna arrays in order to meet higher gain ...to feed the array. Since generally a parallel distributed feed network disturbs the symmetry of the array, ... See full document

... printed dipole for smart antenna application is ...printed dipole on a substrate RT Duroid 5880 of dielectric constant ...element array and the realization of a suitable power divider network ... See full document

... proposed composite antenna has been simulated, fabricated and ...the antenna is 25.5 × 25.5 × 126 . 5 mm 3 . The two crossed dipole antennas are welded together at the top and end of the ... See full document

... omnidirectional antenna with an overall height of 80 mm is presented in this paper for broadband indoor distributed antenna system ...proposed antenna consists of an improved discone antenna ... See full document

... the feed structures and the antenna configurations are more ...magneto-electric antenna with an impedance bandwidth of ...The antenna which consists of a folded shorted patch antenna and ... See full document

... microstrip antenna [9] and an omnidirectional planar slot antenna [10] are proposed, and they are composed of a series of sections of microstrip antenna alternately arranged at each junction and a ... See full document

... the antenna feeding port to the circular ...arc dipole array which is comprised of six broadband baluns and a six-way power ...the antenna are listed in Table ... See full document

... The form of coupling feed is used at the reverse side of substrate. For achieving efficient excitation and good impedance matching, the length of the protruded strip is denoted as l1, l2, l3 and w of which the ... See full document

... According to Floquet theory[11],[12], the problem of an infinite array made of coupled periodic elements can be accurately solved by using a unit cell surrounded by periodic boundaries and Floquet port as ... See full document