Results 1 to 10 of about 472,445 (299)

Strong Spurious Noise Suppression for an FMCW SAR [PDF]

open access: yesRadioengineering, 2016
To meet the miniature requirement, a frequency modulated continuous wave synthetic aperture radar (FMCW SAR) puts tight constraint on the compactness, which causes the interference of narrow band noise.
H. Tian, W.G. Chang, X.Y. Li, Z.H. Liu
doaj   +4 more sources

Enhancement of Spurious Signal Suppression in Microstrip Mixers by Load Resistor Termination [PDF]

open access: yesSensors
The mixer is an essential component in RF transceiver subsystems. It has a role in shifting the signal frequency for more convenient processing of up-conversion as well as down-conversion.
Catur Apriono   +4 more
doaj   +3 more sources

High-Performance SAW Resonator with Spurious Mode Suppression Using Hexagonal Weighted Electrode Structure

open access: yesSensors, 2023
Surface acoustic wave resonators are widely applied in electronics, communication, and other engineering fields. However, the spurious modes generally present in resonators can cause deterioration in device performance.
Yulong Liu   +6 more
doaj   +2 more sources

A 67–110 GHz Multi-Carrier Communication Front End Based on Broadband Diplexer and Filtering Waveguide-to-Microstrip Transitions [PDF]

open access: yesMicromachines
This paper presents a 67–110 GHz millimeter-wave RF front end for 6G high-speed wireless communications. A broadband diplexer based on a staggered branch-waveguide structure is first proposed to achieve low insertion loss and high isolation ...
Yujie Zhi   +5 more
doaj   +2 more sources

The Suppression of Spurious Modes in TC-SAW Resonators by the Application of Bent Metal Strips [PDF]

open access: yesSensors
This article investigates the use of bent metal strips on the top of a SiO2 layer for the suppression of spurious modes in temperature-compensated surface acoustic wave (TC-SAW) resonators employing a SiO2/Cu/128°YX-LiNbO3 structure.
Menghui Li   +6 more
doaj   +2 more sources

Wide Band Spurious Suppression of Multi-Strip Resonator BPF-Comprehensive Way to Suppress Spurious Responses in BPFs-

open access: yesIEICE Transactions on Electronics, 2010
A new comprehensive method to suppress the spurious modes in a BPF is proposed taking the multi-strip resonator BPF as an example. It consists of disturbing the resonant frequency, coupling coefficient and external Q of the higher-order modes at the same time.
Ikuo Awai
exaly   +2 more sources

Theoretical Performance Evaluation of Spurious-Tone Suppression of a Multi-Loop Optoelectronic Oscillator Based on Closed-Loop Response Analysis [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2022
We theoretically evaluate the performance of spurious-tone suppression of a multi-loop optoelectronic oscillators (MOEO) based on closed-loop analysis. Spurious tones are unwanted oscillation signals due to the cavity effect of long-length optical fiber ...
Jun-Hyung Cho   +3 more
doaj   +1 more source

Microwave Photonic Frequency Translators With Large Spurious Suppression and Wide Bandwidth

open access: yesIEEE Photonics Journal, 2021
Two new photonics-based microwave frequency translators are presented. They are based on Serrodyne modulation to frequency translate an optical carrier, which beats with a microwave signal sideband at a photodetector to generate a frequency translated ...
Chongjia Huang, Erwin H. W. Chan
doaj   +1 more source

Spurious Tone Reduction and Signal Stabilization of Optoelectronic Oscillators by Low-Frequency RF Signal Modulation

open access: yesPhotonics, 2022
In this study, the oscillation signal stabilization and spurious tone suppression of a directly modulated optoelectronic oscillator (DM-OEO) are simultaneously achieved by modulating a laser with a low-frequency radio frequency (RF) signal.
Jun-Hyung Cho   +2 more
doaj   +1 more source

Wideband Bandpass TM Cavity Filters With Wide Spurious Free Band

open access: yesIEEE Access, 2023
Recently, the spurious self-suppression method has been introduced and applied to the bandpass TM cavity filters to improve their stopband performance. However, this method has the limitation of being applicable only to TM narrow-band filters. This paper
Abdul Rehman, Cristiano Tomassoni
doaj   +1 more source

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