A multi-chroic kinetic inductance detectors array using hierarchical phased array antenna

Polarization Sensitive Multi-Chroic MKIDs

We report on the development of scalable prototype microwave kinetic inductance detector (MKID) arrays tailored for future multi-kilo-pixel experiments that are designed to simultaneously characterize the polarization properties of both the cosmic microwave background (CMB) and Galactic dust emission. These modular arrays are composed of horn-coupled, polarization-sensitive MKIDs, and each pixel has four detectors: two polarizations in two spectral bands between 125 and 280 GHz. A horn is used to feed each array element, and a planar orthomode transducer, composed of two waveguide probe pairs,…

Development of Multi-Chroic MKIDs for Next-Generation CMB Polarization Studies

We report on the status of an ongoing effort to develop arrays of horn-coupled, polarization-sensitive microwave kinetic inductance detectors (MKIDs) that are each sensitive to two spectral bands between 125 and 280 GHz. These multi-chroic MKID arrays are tailored for next-generation, large-detector-count experiments that are being designed to simultaneously characterize the polarization properties of both the cosmic microwave background (CMB) and Galactic dust emission. We present our device design and describe laboratory-based measurement results from two 23-element prototype arrays. From da…

Hierarchical sinuous-antenna phased array for millimeter wavelengths

We present the design, fabrication and measured performance of a hierarchical sinuous-antenna phased array coupled to superconducting transition-edge-sensor (TES) bolometers for millimeter wavelengths. The architecture allows for dual-polarization wideband sensitivity with a beam width that is approximately frequency-independent. We report on measurements of a prototype device, which uses three levels of triangular phased arrays to synthesize beams that are approximately constant in width across three frequency bands covering a 3:1 bandwidth. The array element is a lens-coupled sinuous antenna…

A kinetic inductance detectors array design for high background conditions at 150 GHz

We present a design for an array of kinetic inductance detectors (KIDs) integrated with phased array antennas for imaging at 150 GHz under high background conditions. The microstrip geometry KID detectors are projected to achieve photon noise limited sensitivity with larger than 100 pW absorbed optical power. Both the microstrip KIDs and the antenna feed network make use of a low-loss amorphous silicon dielectric. A new aspect of the antenna implementation is the use of a NbTiN microstrip feed network to facilitate impedance matching to the 50 Ohm antenna. The array has 256 pixels on a 6-inch …

耦合铝基KIDs的分级相控阵天线：一种用于多波段毫米/亚毫米焦平面的可扩展架构

Hierarchical phased-array antennas coupled to Al KIDs: a scalable architecture for multi-band mm/submm focal planes

本研究针对毫米/亚毫米波长探测需求，提出耦合铝基KIDs的两级分级相控阵天线架构，实现4频段分光与低频像素相干合成，并通过三类光学测量验证了其性能，为多波段焦平面提供可扩展方案。

用于NEW-MUSIC的六频段、2.4倍频程（80--420 GHz）分层求和相控阵缝隙偶极子天线阵列设计

Design of a Six-band, 2.4-Octave (80--420 GHz) Hierarchically Summed Phased-Array Slot-Dipole Antenna Array for NEW-MUSIC

针对下一代扩展波长多波段亚毫米波电感相机（NEW-MUSIC），本文设计了覆盖80--420 GHz的六频段分层求和相控阵缝隙偶极子天线阵列，集成滤波器组实现宽带覆盖与频段定义，满足多科学目标观测需求。