Results 11 to 20 of about 152,070 (212)
Harmonic Generation by Nondegenerate P-N Junction Varactor Diodes [PDF]
Active and Passive Electronic Components, 1997 This paper deals with the large-signal analysis of nondegenerate p-n junction varactor diodes. Expressions are obtained for the harmonics of the varactor diode current when driven by a sinusoidal voltage signal. The special case of relatively small input
Muhammad Taher Abuelma'atti
doaj +2 more sources
Fixed and reconfigurable multiband antennas [PDF]
, 2011 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel UniversityWith the current scenario of development of antennas in the wireless communication field, the need of compact multiband, multifunctional and cost effective ...
Abutarboush, Hattan F
core +6 more sources
Distortion mechanisms in varactor diode-tuned microwave filters [PDF]
, 2006 This paper examines the broadband distortion behavior in flexible filters employing varactor-diode tuning elements. Series- and parallel-resonant varactor-loaded transmission-lines, both commonly used in bandpass and bandstop microwave filters, are ...
Carey-Smith, BE, Warr, PA
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Design of Pattern Reconfigurable Patch Antenna Array Based on Reflective Phase-Shifter
International Journal of Antennas and Propagation, 2022 A circularly polarized (CP) broadside antenna array with a continuously adjustable beam is proposed and implemented. First, a reflection phase shifter with varactor diodes loaded on two output terminals of a branch directional coupler is realized.
Yuqiu Shang +4 more
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Crystals, 2022 Lately, metasurface has become an essential and promising component in implementing Intelligent Reflecting Surface (IRS) for 5G and 6G. A novel method that simplifies the ability to reconfigure the metasurface is presented in this paper.
David Rotshild +6 more
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Nanophotonics, 2021 We propose an ultrathin reconfigurable Mach–Zehnder interferometer (MZI) for realizing dynamic frequency and amplitude modulations of spoof surface plasmon (SSP) signal.
Cui Wen Yi +3 more
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An Electronically-Tunable, Flexible, and Transparent Antenna With Unidirectional Radiation Pattern
IEEE Access, 2021 In this paper, a frequency reconfigurable, conformal, durable, optically transparent, and unidirectional antenna design is demonstrated for the first time.
Abu Sadat Md. Sayem +4 more
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IEEE Access, 2020 Recently, much attention has been paid to beams carrying orbital angular momentum (OAM) for radio communication, which faces a great challenge of dynamic generation of OAM with different topological charges.
Kai Guo +3 more
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IEEE Access, 2023 A novel metasurface reflector unit cell based on two coupled resonators is proposed and demonstrated for real-time reconfigurable beamforming in the X-band (8-12 GHz). The unit cell is composed of a split-ring resonator (SRR) with tunable capacitance and
Mohamed K. Emara +4 more
doaj +1 more source
Bamboo-Slip-Inspired Conformal Reconfigurable Metasurfaces. [PDF]
Adv Sci (Weinh)Bamboo‐slip‐inspired conformal reconfigurable metasurface system. The structure is mainly composed of three parts, which are conformal metasurface, pattern reconfigurable antenna, and control components (such as Field Programmable Gate Array (FPGA)). Conformal metasurfaces draw inspiration from the design of ancient Chinese bamboo slips.
Li Q +9 more
europepmc +2 more sources