Results 251 to 260 of about 67,407 (304)

Spurious radiation suppression in microstrip monopulse antenna

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2020
Purpose This paper aims to introduce a new novel microstrip monopulse comparator system to reduce the spurious radiation from the comparator and the feed network for achieving better radiation performance. Design/methodology/approach Two substrate layers have been used for the microstrip monopulse comparator system.
Rasime Uyguroğlu, Allaeldien Mohamed Hnesh, Muhammad Sohail, Abdullah Y. Oztoprak   +3 more
openaire   +1 more source

Spurious-mode suppression in optoelectronic oscillators

2010 IEEE International Frequency Control Symposium, 2010
Optoelectronic oscillators (OEOs) are promising low phase noise radio frequency sources. However, the long fiber loops required for a high Oscillator Q also lead to spurious modes (spurs) spaced too narrowly to be filtered by standard electronic devices.
Olukayode Okusaga, Eric Adles, Weimin Zhou, Curtis Menyuk, Gary Carter, Etgar Levy, Moshe Horowitz   +6 more
openaire   +1 more source

Simple Suppression of Spurious Peaks in TROSY Experiments

Journal of Magnetic Resonance, 2000
In (1)H-(15)N TROSY experiments of proteins and nucleic acids, where the second coherence transfer delay time tau' has been fixed as 5.6 ms, 1/(2(1)J(NH)), in order to achieve complete spin-state selection, spurious negative peaks are observed along the (15)N axes. These peaks are often annoyingly large, especially for nucleic acids.
C, Kojima, M, Kainosho
openaire   +2 more sources

Microstrip filter with suppression of spurious-bands

2011 10th International Conference on Telecommunication in Modern Satellite Cable and Broadcasting Services (TELSIKS), 2011
A method of the suppression of spurious bands in the amplitude-frequency response of the filters containing micro-strip resonators with the coupling performed by lumped inductances has been proposed. It has been suggested to eliminate spurious bandpass in the amplitude-frequency response of the microstrip filters.
V. M. Vladimirov, V. V. Markov, V. N. Shepov   +2 more
openaire   +1 more source

Spurious Mode Suppression in Coupled Resonator Filters

IEEE MTT-S International Microwave Symposium Digest, 2005., 2005
The Coupled Resonator Filter (CRF) is a new type of Bulk-Acoustic-Wave (BAW) device in which two piezoresonators are stacked on top of each other in a way that a certain degree of acoustic interaction occurs. For a proper frequency response, a method for suppression of spurious resonances is of utmost importance.
G. G. Fattinger, M. R. Fattinger, K. Diefenbeck, P. Müller, R. Aigner   +4 more
openaire   +1 more source

Balanced bandpass filter with spurious mode suppression

Microwave and Optical Technology Letters, 2017
ABSTRACTThis article presents a new and simple design approach for the balanced bandpass filter (BPF) with spurious mode suppression using half‐wavelength resonators. The second harmonic of the resonator, acting as the lowest‐frequency common‐mode (CM) noise, is suppressed by using a new differential feeding scheme. Furthermore, an electrically coupled
Yun‐Li Li, Jian‐Xin Chen, Jiangjingxian Chen, Shi‐Bing Zhang, Zhi‐Hua Bao   +4 more
openaire   +1 more source

Spurious modes suppression in Stacked Crystal Filter

2010 IEEE Long Island Systems, Applications and Technology Conference, 2010
Stacked Crystal Filters (SCFs) are used in Bandpass filters and other applications where frequency control is required. SCFs use the Solidly Mounted Resonator (SMR) structure to enable operations at RF frequencies, typically 1–5 GHz. In the response spectrum of the SCFs, besides the main resonance mode, there are some unwanted additional modes present ...
Ambarish Roy, Kanti Prasad, Bradley P. Barber   +2 more
openaire   +1 more source

Suppression of spurious noise sources in airfoil self-noise measurements

21st AIAA/CEAS Aeroacoustics Conference, 2015
Aircraft Noise and Climate ...
Tuinstra, M (author), Sijtsma, P (author)   +1 more
openaire   +2 more sources

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

IEICE 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.
openaire   +1 more source

Spurious field suppression in overlapping domain decomposition methods

2012 International Conference on Electromagnetics in Advanced Applications, 2012
A fully overlapping decomposition method is proposed to solve the vector Helmholtz equation. Of particular interest is the modeling of in situ antennas on platforms and the design optimizations of irregularly arranged arrays. In this paper, we address the issue of spurious field suppression arising from completely non-conformal meshing in the fully ...
T. Peng, K. Sertel, J. L. Volakis
openaire   +1 more source