In this paper, a beamforming correction for identifying dipole sources by means of phased microphone array measurements is presented and implemented numerically and experimentally. Conventional beamforming techniques, which are developed for monopole sources, can lead to significant errors when applied to reconstruct dipole sources. A previous correction technique to microphone signals is exten...

For an electromagnetic plane wave that is normally incident upon aperture or array in infinite perfectly electrical conducting plane, the validity of general expression for transmission cross-section as a measure transmitted power through investigated following two cases: first, single resonant (TRA) such complementary split ring resonator, which larger than Bethe’s small magnetic dipole; secon...

shear and compressional wave velocities along with other petrophysical logs, are considered as upmost important data for hydrocarbon reservoirs characterization. shear wave velocity (vs) in well logging is commonly measured by some sort of dipole logging tools, which are able to acquire shear waves as well as compressional waves such as sonic scanner, dsi (dipole shear sonic imager) by schlumbe...

A compact series-fed, omnidirectional printed dipole array for millimeter-wave (mm-wave) bands n257, n259, and n261 is proposed. series feed technique with microstrip to grounded-co-planar waveguide (CPW) transition was used the antenna. The prototype fabricated measured range from 27.25 28.5 GHz. peak gain 10.3 dBi a maximum azimuthal ripple of 4.4 dB.

Introduction: Electric dipole fields show an increasing contribution to Ultimate Intrinsic SNR (UISNR) at high fields. Substantial SNR boosts have been shown in a body sized phantom at 7.0 T by using a combination of loop and electric dipole elements. A mixture of element types may also improve the performance of parallel transmit array designs, but with most parallel transmit systems currently...