Autonomous quantum error correction has gained considerable attention to avoid complicated measurements and feedback. Despite its simplicity compared with the conventional measurement-based correction, it is still a far from practical technique because of significant hardware overhead. We propose an autonomous scheme for rotational symmetric bosonic code in four-photon Kerr parametric oscillato...

This paper presents an advanced and extensive utilization approach of microwave resonant fields, and the applications to push-push oscillators and reconfigurable planar antennas. The excellent coherency, synchronous harmonics and the degenerative orthogonal modes of electromagnetic field built up on microwave resonators are noticeable features in this approach. Another crucial point is the reso...

A theory of generation linewidth of a spin-torque oscillator (STO) based on an in-plane magnetized nanopillar with an anisotropic “free” magnetic layer has been developed. It is shown that the coherent properties of microwave generation strongly depend on the direction and magnitude of the in-plane bias magnetic field. In particular, it is predicted that by choosing the direction of the bias fi...

In the paper, different architectures of fiber-optic distribution systems microwave signals for active phased array antennas are studied. The system with all-optical gain local oscillator is presented. fragment proposed realized and characterized. It experimentally shown that developed provides noise-to-signal ratio – 150 dBc/Hz, output channel power about 1 mW phase fluctuation between channel...

A chirped microwave waveform with a large time-bandwidth product (TBWP) can find important applications in modern radar systems and imaging systems. Microwave photonics, field that studies the generation processing of signals optical domain to take advantage ultra-wide bandwidth offered by has been considered an effective solution for high-frequency large-bandwidth generation. In this paper, ov...

The U.S. Army’s Future Combat Systems are designed to support the future force with three integrated transformation phases: Concept and Technology Development, Systems Design, Demonstration and Production. The Concept and Technology Developments phase is creating new challenges and opportunities for radio frequency and microwave applications in global positioning, navigation, timing, communicat...

single-valence electron atoms are an important class of atoms. their oscillator strengths are their important properties. knowing the oscillator strengths one can easity calculate the transition probabilities of the spectral lines and hence the lifetimes of energy levels of most atoms. the oscillator strengths of the spectral lines of most atoms are not knoen with sufficient accuracy due to the...

This thesis studied the design techniques of low phase noise and wideband microwave voltage controlled oscillators (VCOs) used for point-to-point radio applications. First, basic oscillator theories as well as different technologies were reviewed. Then two Cband MMIC VCOs were designed in a commercial InGaP HBT foundry process with different topologies, namely the balanced Colpitts and the bala...

We study a direct-current-driven maser device enabled by spin-photon coupling, where coherent magnetic self-oscillation can be realized in large-area ferromagnetic thin film under the excitation of spin-orbit torques. show via both micromagnetic simulation and analytical derivation that above critical value coupling strength between spin-torque oscillator microwave resonator, oscillation develo...

This precise, compact microwave sweep oscillator is a signif icant contribution to its f ield. The latest microelectronic and YIG technology makes it possib/e. tT, Hn NEED FOR VERY BROADBAND swept I microwave sources is well established. Production testing of multi-octave devices requires a broad-band sweeper that is simple to operate. Automated test systems need a source that is programmable a...