Parametric Amplification/Mixing Using the Varactor Diode
نویسندگان
چکیده
منابع مشابه
Design of Frequency Reconfigurable Antenna using Varactor Diode
In this paper, a frequency reconfigurable microstrip patch antenna is designed with microstrip feeding technique. The reconfigurable antenna is designed with one square patch and four truncated corners in order to tune for different frequencies. Varactor diode is used for switching operation in the proposed antenna. By changing the capacitance of the diode, the antenna can be reconfigured betwe...
متن کامل“Distortion-Free” Varactor Diode Topologies for RF Adaptivity
Varactor diode-based circuit topologies, which can act as high-Q “distortion-free” tunable capacitive elements, are presented. These diodes are implemented in a novel ultra low-loss silicon-on-glass technology, with resulting measured Q's of over 200 at 2 GHz. The measured IM3 improvement compared to traditional single varactor tuning techniques is greater than 30 dB. Index Terms — Distortion, ...
متن کاملDesign of Frequency Reconfigurable Multiband Meander Antenna Using Varactor Diode for Wireless Communication
A compact multiband frequency reconfigurable meander antenna proposed for wireless communication systems is designed and described in this paper. A folded structure has been chosen due its good tradeoff between size, bandwidth and efficiency. The reference antenna is based on a meander patch structure radiating at F1=1, F2=1.94, F3=2.6GHz and optimized to be integrated in the Printed Circuit Bo...
متن کاملDesign and Analysis of Frequency-Tunable Amplifiers using Varactor Diode Topologies
The design of frequency-tunable amplifiers is investigated and the tradeoff between linearity, efficiency and tunability is revealed. Several tunable amplifiers using various varactor diode topologies as tunable devices are designed by using loadpull techniques and their performances are compared. The amplifier using anti-series distortion-free varactor stack topology achieves 38% power added e...
متن کاملThe Oxide Barrier Varactor
The heterostructure barrier varactor [1] consists of a layer-cake of alternating low and high band-gap semiconductor materials, for example GaAs and AlGaAs. As bias is applied in either direction across the layers, the electrons in the moderately doped low band-gap layers form a two-dimensional electron gas against the conduction band discontinuity at the heterojunction. Thus, most of each low ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Active and Passive Electronic Components
سال: 1996
ISSN: 0882-7516,1563-5031
DOI: 10.1155/1996/80810