Results 131 to 140 of about 567,106 (189)

A 65-115 GHz VNA Extension Frontend Based on a High-Directivity Misaligned Waveguide Branch Coupler. [PDF]

Micromachines (Basel)
Zhang Y, Dai B, Niu Z, Chen N, Feng Y, Zhang Y, Zhang B.   +6 more
europepmc   +1 more source

Design and Experimental Validation of an Embedded Edge Artificial Intelligence Camera System for Real-Time Intelligent Vision. [PDF]

Sensors (Basel)
Hwang HY, Huang FH.
europepmc   +1 more source

Ultra-sensitive wideband diffraction-grating-coupled-mode Fabry-Pérot resonators for ultrasound and photoacoustic detection. [PDF]

Photoacoustics
Jiang X, Shen M, Wei S, Somekh MG.
europepmc   +1 more source

Design and machine learning-based optimization of a graphene-driven funnel shaped THz MIMO antenna for 6G applications. [PDF]

Sci Rep
Haque MA, Shuaib M, Billah M, Tiang JJ, Paul LC, Singh NSS, Nahas M, Nahas MM.   +7 more
europepmc   +1 more source

Bandwidth Limitations of Impedance Matched Ideal Dipoles

IEEE Transactions on Antennas and Propagation, 2005
Using circuit theory and Chu's network representations of the wave impedance of the lowest spherical multipole field, the Ideal dipole, an explicit expression is derived for the upper limit for the impedance bandwidth obtainable for an ideal, lossless, linearly polarized antenna. The expression embodies the network character of an ideal antenna and its
Holmberg, Jan, Sten, Johan, Hujanen, Arto   +3 more
exaly   +3 more sources

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Impedance Bandwidth of the Square Planar Monopole

Microwave and Optical Technology Letters, 2000
An analysis of a broadband square planar monopole is presented. The frequency corresponding to the lower edge of the impedance bandwidth may be found by using a simple formula, based on an equivalent cylindrical monopole. To obtain the upper edge frequency accurately, a method-of-moments analysis which employs wire gridding is required.
Max J Ammann
exaly   +3 more sources

An Impedance-Matching Technique for Increasing the Bandwidth of Microstrip Antennas

IEEE Transactions on Antennas and Propagation, 1989
The nature of the inherent narrow bandwidth of conventional microstrip patch antennas is considered. It is observed that, except for single-feed circularly polarized elements, their bandwidth is limited only by the resonant behavior of the input impedance and not by radiation pattern or gain variations, which usually are negligible over a moderate 10 ...
H.F. Pues, A.R. Van de Capelle
exaly   +2 more sources

Impedance, Bandwidth, and Q of Antennas

IEEE Transactions on Antennas and Propagation, 2005
S R Best, A D Yaghjian
exaly   +2 more sources