probe: Narda ELT-400 (100 [cm.sup.2] sensor)
In order to claim that proposed antenna design was suitable for communication with any active NFC antenna, various simulations were performed to measure H-field
, Directivity and Gain for the proposed antenna.
The changing h-field
, however, is continuous across the boundary of the dielectric and conductor.
Also included in the set are the SX-E 03, an E-field probe for frequencies between 1 GHz and 10 GHz with an electrode on the underside of the probe head sized approximately 4 x 4 mm; and the SX-R 3-1, an H-field
probe for frequencies between 1 GHz and 10 GHz with a very small probe head to identify even the smallest components as a source of interference.
It is a well-known fact that the coaxial transmission line supports a transverse electromagnetic mode, with E-field lines perpendicular to the central conductor spanning to the surrounding ground plane, whereas the H-field
lines are solenoidal, closing around the central conductor strip.
The position of the cavity and the number and the radii of the grounded vias must be carefully selected, because it is directly related to the antenna performance and the coupling h-field
level in the package cavity.
MAY 21, 2009: Aberdeen Test Center employees Douglas Mauzy, Mark Henry and Joseph Gray were conducting an accuracy and fire-control test in a Soviet-era T-55 tank at the H-Field
Firing Range on the Edgewood Area of Aberdeen Proving Ground, Md.
In an OR, an ECG front-end circuit will see interfering signals such as ablation, electric cautery, defibrillation, external pacing, internal pacing, pacemaker H-field
telemetry, and a multitude of other signals.
Although the E-field and H-field
attributes inside a microwave DRF are hard to observe, an accurate analysis of the overall inhomogeneous structure is inevitably required for practical design and application considerations.
This benchmark, which was first promulgated in 1965, calls for electrical/planewave attenuation of 100 dB between 10 khz and 10 GHz and magnetic (H-Field
) attenuation of 20 dB at 1 kHz, rising to 100 dB at 1 MHz.
Thebenchtop scanner's 1,218 H-field
probes are spaced every 7.5 mm and measure signals from 50 kHz to 4 GHz.
We can also see the H-field
lines at 40 MHz in the human body through the mapping illustrated by Fig.
The electric field is computed directly, and the user can view either the E- or H-field
for each frequency.
As explained in the 7405 datasheet, "The loop probes are H-field
selective and directional.
Since [H.sub.[phi]] = 1/(jw[[mu].sub.0])[partial derivative][E.sub.z]([rho], [phi])/[partial derivative][rho], the corresponding [phi] component of the H-field
in region (I) is