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Development of long-distance power supply system with high power laser over single mode fiber

期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2021; 63 (7)

The technology of long-distance power supply with high-power laser (HPL) over single-mode fiber (SMF) is of great significance in specific environment......

Research on high luminous efficiency, high color rendering index chips on board light emitting diode and excitation and excitation saturation effect of phosphor

期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2021; 63 (9)

A kind of chips on board (COB) package of light emitting diode (LED) light source is designed and produced. By reducing the current density and using ......

High sensitivity open-path gas sensor based on a triangular multi-pass cell

期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2021; 63 (10)

In this article, a gas sensing technique utilizing a compact multi-pass absorption cell in a triangular configuration was proposed for open-path trace......

Compact planar multiple-input-multiple-output antenna with pattern diversity based on the complementary theory

期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2021; 63 (10)

A three-port planar multiple-input-multiple-output (MIMO) antenna system with pattern diversity based on the complementary theory is presented in this......

Modeling of a cylindrical resonant photoacoustic cell for high sensitive gas detection

期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2021; 63 (10)

Photoacoustic spectroscopy (PAS) is a sensitive spectroscopic technique for trace gas sensing. As a key component of a PA sensor system, the cell cons......

Multi-band bandpass filter based on direct-connected T-shaped stub-loaded resonator

期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2021; 63 (11)

In this paper, we proposed an optimized structure, named direct-connected T-shaped stub-loaded resonator (DC-TSSLR), which generates nine high-perform......

Compact in-band pattern diversity antenna for wireless applications

期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2021; 63 (11)

A compact pattern diversity patch antenna working at 5.8 GHz is proposed. The patch antenna has two ports, which are responsible for the broadside rad......

Temperature sensing technique by using a microwave photonics filter based on an actively mode-locked fiber laser

期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2021; 63 (10)

In this article, a temperature-sensing scheme by using a microwave photonics filter (MPF) based on an actively mode-locked fiber laser (MLFL) has been......

Design and alignment of off-axis reflection beam expanding and contracting optical system

期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2021; 63 (10)

There are special requirements for the laser beam diameter and divergence angle in various optical combination systems, so most of the designs add bea......

Fiber-optic whispering-gallery-mode magnetic field sensor based on magnetic fluid infiltrated hollow core fiber

期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2021; 63 (9)

A fiber-optic magnetic field sensor based on magnetic fluid (MF) infiltrated hollow core fiber (HCF) was proposed. The MF infiltrated HCF was used as ......

A circularly polarized low-profile magnetoelectric dipole antenna

期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2021; 63 (11)

In this article, we proposed a novel circularly polarized magnetoelectric (ME) dipole antenna with low profile, which is excited by substrate integrat......

Design of compact high temperature superconducting dual-band filter using dual-composite right-/left-handed resonators

期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2021; 63 (11)

A compact high temperature superconducting dual-band band-pass filter (BPF) is presented based on compact dual-mode dual-composite right-/left-handed ......

Multifunctional near field focusing transmission metasurface based on polarization sensitivity

期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2021; 63 (7)

In this paper, a near field focusing transmission metasurface (MS) based on polarization sensitivity is developed at microwave frequency. The MS unit ......

Angularly stable frequency selective surface for the gain enhancement of isolated multiple input multiple output antenna

期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2021; 63 (11)

A metasurface is highly useful for improving the performance of patch antennas and reducing their size due to their inherent and unique electromagneti......

A W-band preamplified MMIC power detector for passive imaging applications

期刊: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2021; 63 (7)

This article presents a W-band preamplified power detector (PD) monolithic microwave integrated circuit (MMIC). The chip consists of a pseudomorphic h......

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