Developments of a Novel Impedance Matching Circuit for Electrically Small Antennas
نویسندگان
چکیده
منابع مشابه
Developments of a Novel Impedance Matching Circuit for Electrically Small Antennas
Abstract. In order to reduce the size of a wireless system, we have proposed the design formulas for an electrically small antenna (ESA), i.e. an antenna whose dimension is much smaller than a wavelength, with a miniaturized matching circuit which connects to a 50ohm external circuit. We designed a slot dipole antenna with the aid of the simulations using the electrical circuits as well as the ...
متن کاملDevelopment of Electrically Small Planar Antennas with Matching Circuit
We designed and fabricated an electrically small antenna (ESA) with coplanar waveguide (CPW) matching circuit. Matching circuit is realized by using interdigital gap and transmission line. We designed ESA with the aid of the commercial three-dimensional electro magnetic field simulator. We also made experiments on the ESA with CPW matching circuits using patterned circuit board.
متن کاملElectrically Small Antennas with Miniaturized Impedance Matching Circuits for Semiconductor Amplifiers
In order to reduce the size of a wireless system, we propose a design theory for the broadband impedance matching circuit which connects an electrically small antenna (ESA) to a semiconductor amplifier. We confirmed its validity for the case of connection between a small slot loop antenna with a small radiation resistance of Ra = 0.776Ω and a semiconductor amplifier with high input impedance of...
متن کاملSMALL ANTENNAS Basic Principles of Electrically Small Antennas
E lectrically small antennas have been an important part of communications engineering since the beginning. Whether they are small compared to the extremely long wavelengths used at the lowest radio frequencies, or intended to save space in GHz-range wireless devices, the basic principles are the same. This tutorial will review those principles, with primary attention to describing the performa...
متن کاملImpedance Matching for RFID Tag Antennas
Passive UHF RFID tag consists of a microchip attached to an antenna. Proper impedance match between the antenna and the chip is crucial in RFID tag design. It directly influences RFID tag performance characteristics such as the read range. It is known that an RFID microchip is a nonlinear load whose complex impedance varies with the frequency and the input power. We investigate the effect of us...
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: Journal of Physics: Conference Series
سال: 2006
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/43/1/333