Design of Wide-Band Dipole Antennas with Plate for Improving Gain Flatness
نویسندگان
چکیده
منابع مشابه
Design Aspects of PrintedMonopole Antennas for Ultra-Wide Band Applications
This paper presents the design equations for lower band-edge frequency for all the regular shapes of printed monopole antennas with various feed positions. The length of the feed transmission line is a critical design parameter of these monopole antennas. Design curves for the length of the feed transmission line for various lower band-edge frequencies for all these regular shaped monopoles hav...
متن کاملWide - Band Test Antennas
As part of an indoor mutt/path measurement system, discone antennas featuring simple N~onnector feed systems have bHn designed for the 1.0 to 2.0 GHz band. Extensive experimentation reveals that excellent performance (VSWR < 15:1 across the band) can be obtained with a simple "snap-on" feed/mount method, and that VSWR is most sensitive to the diameter of the disc feed conductor. Per· formance d...
متن کاملOptimal Design of Flat-Gain Wide-Band Fiber Raman Amplifiers
We present a novel method for desiging multiwavelength pumped fiber Raman amplifiers with optimal gain-flatness and gain-bandwidth performance. We show that by solving the inverse amplifier design problem, relative gain flatness well below 1% can be achieved over bandwidths of up to 12 THz without any gain equalization devices. This constitutes a substantial improvement in gain flatness compare...
متن کاملThe Design of W - Periodic Dipole Antennas
A mathemat ica l ana lys i s of the logar i thmica l ly per iodic d ipole class of frequency independent antennas, which takes into account the mutual coupling between dipole elements, is descr ibed. A h igh speed d ig i t a l computer (ILLIAC) is used t o c a l c u l a t e t h e i n p u t impedance gain, and bandwidth, a s w e l l a s t h e i n p u t c u r r e n t and vol tage of the several...
متن کاملDesign and Analysis of Ultra-wide Band Bandpass Filter Using Spiral Stub-Loaded Triple-Mode Resonator with a Notched Band
An ultra-wide band band-pass filter using novel spiral stub-loaded triple-mode resonator (SSLTMR) is presented. New spiral stub loaded resonator is analyzed with odd and even modes analysis for this class of BPF, achieving higher band wide and size reduction. In order to have a good response characterized, two (SSL-TMRs) and two quarter wavelength digital coupled lines are used. This new design...
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: The Journal of Korean Institute of Electromagnetic Engineering and Science
سال: 2008
ISSN: 1226-3133
DOI: 10.5515/kjkiees.2008.19.7.800