Results 21 to 30 of about 24,700 (193)

Fast design optimization of UWB antenna with WLAN Band-Notch [PDF]

open access: yes, 2015
In this paper, a methodology for rapid design optimization of an ultra-wideband ( UWB) monopole antenna with a lower WLAN band-notch is presented. The band-notch is realized using an open loop resonator implemented in the radiation patch of the antenna ...
Bekasiewicz, A   +3 more
core   +2 more sources

An Autonomous Frequency Reconfigurable Antenna Using Slotline Open-Loop Resonators [PDF]

open access: yesIEEE Access, 2021
This paper presents a slotline open-loop resonators based frequency reconfigurable antenna with autonomous switching of frequency bands. The dual-port slot antenna is designed to operate at 2.1 GHz when excited at port-1, and when port-2 is excited, the antenna can be reconfigured to operate at 2.85 GHz and 5.52 GHz, respectively.
Geriki Polaiah   +2 more
openaire   +2 more sources

Design of High Performance Microstrip Dual-Band Bandpass Filter [PDF]

open access: yes, 2015
This paper presents a new design of dual-band bandpass filters using coupled stepped-impedance resonators for wireless systems. This architecture uses multiple couple stubs to tune the passband frequencies and the filter characteristics are improved ...
Khajavi, N., Majidifar, S., Makki, S. V.
core   +2 more sources

Characteristics of a 9mm triple-beam tuning fork resonant sensor [PDF]

open access: yes, 2007
This paper describes the design and testing of the first miniaturised metallic triple-beam tuning fork resonant sensors for use in force, pressure and torque measurement applications. The new devices with 9mm length vibrating tines have resulted in over
Intiang, J   +3 more
core   +1 more source

Compact Dual-Mode Open Loop Microstrip Resonators and Filters [PDF]

open access: yesIEEE Microwave and Wireless Components Letters, 2009
A novel compact microstrip dual-mode resonator and filter are proposed. The characteristics of the dual mode resonator are investigated. It is found that the filter response exhibits a desirable stopband response where the first spurious passband naturally occurs at 3f0. Finally, methods of miniaturizing such resonators and filters are discussed.
L. Athukorala, D. Budimir
openaire   +1 more source

Exploring Mode Hopping Performance of a Prism Laser Gyro

open access: yesXibei Gongye Daxue Xuebao, 2019
In view of the poor mode hopping performance of prism laser gyros, the mode hopping performance of a prism laser gyro is systematically studied. A mathematical model of frequency stabilization actuating mechanism is established, and the mode hopping is ...

doaj   +1 more source

Design and Simulation of Microwave Oscillator [PDF]

open access: yesEngineering and Technology Journal, 2009
This paper is concerned with the design and simulation of fixed frequency microwaveoscillator. Scattering parameters of the active device (MESFET-Afm02n8b) are used todesign and synthesize the oscillator.
Ahmed H. Reja   +2 more
doaj   +1 more source

Ultimate limits to inertial mass sensing based upon nanoelectromechanical systems [PDF]

open access: yes, 2003
Nanomechanical resonators can now be realized that achieve fundamental resonance frequencies exceeding 1 GHz, with quality factors (Q) in the range 10 ...
Ekinci, K. L.   +2 more
core   +2 more sources

Band-Pass Filter Microstrip at 3 GHz Frequency Using Square Open-Loop Resonator for S-Band Radar Applications

open access: yesJurnal Elektronika dan Telekomunikasi, 2020
In telecommunication, filters are often used to pass the desired frequency. One of them is the Band-Pass Filter (BPF) which is passing signals between the upper cut-off frequency and the lower cut-off frequency.
Rima Anisa Maulidini   +2 more
doaj   +1 more source

Piezoelectric MEMS Resonators for Cigarette Particle Detection

open access: yesMicromachines, 2019
In this work, we demonstrate the potential of a piezoelectric resonator for developing a low-cost sensor system to detect microscopic particles in real-time, which can be present in a wide variety of environments and workplaces.
Javier Toledo   +5 more
doaj   +1 more source

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