A new design and experimental results of a microstripfed ultra-wideband Fermi antenna at millimeter-wave frequencies are presented. By utilizing a new microstrip-to-CPS balun (or transition), which provides wider bandwidth than conventional planar balun, the design of microstrip-fed Fermi antenna is greatly simplified. The proposed Fermi antenna demonstrates ultra-wideband performance for the f...

An approximate analysis is presented together with a physicaf description of the modes of propagation in stripline and microstrip devices of significant width, using ferrite slabs as dielectric material, magnetized perpendicular to the ground plane. The dominant mode resembles TEM propagation, except that there is a strong transverse field displacement, causing wave energy to be concentrated al...

Individual nitrogen vacancy (NV) color centers in diamond are versatile, spin-based quantum sensors. Coherently controlling the spin of NV using microwaves a typical frequency range between 2.5 and 3.5 GHz is necessary for sensing applications. In this work, we present stripline-based, planar, {\Omega}-shaped microwave antenna that enables to reliably manipulate spins. We find an optimal design...

In this article, a novel design approach for designing 4×4 and 8×8 filtering Butler matrices is proposed. The matrices, composed of combined 90° couplers 180° as well phase shifters, provide incremental shifts bandpass filter performance. detailed process synthesis method the are presented. A three-layer symmetrical stripline structure used to realize matrix, allowing fully planar without inter...

This study presents a triangle director dipole antenna with rectangular impedance balun (RIB). The proposed consists of triangular director, coplanar waveguide (CPW) to stripline (CPS) transition line, and the RIB. substitutes typical planar quasi-Yagi antenna. has modified generates circular polarization. Also, RIB match an between CPW-fed CPS line. It obtains ultra-wide frequency band 4020 MH...

The Advanced Photon Source (APS) design incorporated a positron accumulator ring (PAR) as part of the injector chain. In order to increase reliability and accommodate other uses of the injector, APS will run with electrons, eliminating the need for the PAR, provided another method of eliminating rf bucket “pollution” in the APS is found. Satellite bunches captured from an up to 30-ns-long beam ...

estimate of sediment load is required in a wide spectrum of water resources engineering problems. the nonlinear nature of suspended sediment load series necessitates the utilization of nonlinear methods to simulate the suspended sediment load. in this study artificial neural networks (anns) are employed to estimate daily suspended sediment load. two different ann algorithms, multi layer percept...

We present results obtained with the T-488 experiment at SLAC Endstation A (ESA). A material model of the ILC extraction-line design was assembled and installed in ESA. The module includes materials representing the mask, beamline calorimeter, and first extraction quadrupole, encompassing a stripline interaction-point feedback system beam position monitor (BPM). The SLAC high-energy electron be...

We study the nonlinear dynamics of an ensemble of cold trapped atoms with a hyperfine transition magnetically coupled to a resonant microwave cavity mode. Despite the minute single-atom coupling, one obtains strong coupling between collective hyperfine qubits and microwave photons, enabling coherent transfer of an excitation between the long-lived atomic qubit state and the mode. Evidence of st...