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This paper presents the design of a monolithic-integrated circularly-polarized antenna-coupled high-Tc superconducting terahertz harmonic mixer. The new mixer has a compact feature that all its relevant components are integrated on one tiny chip, and exhibits enhanced polarization orientation flexibility in coupling THz radiations. This mixer has the potential in practical THz wireless applications.
Lanzhou Penning Trap (LPT) is now being developed for precise mass measurements in Institute of Modern Physics (IMP). Homogeneity of magnetic field in LPT was about 3 ppm when without active shimming, while the required value is less than 0.5 ppm. Linear programming algorithm was employed to design a 9-coil cylindrical shim set for main magnet in LPT. First, mesh on the cylinder and current paths...
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