نتایج جستجو برای: sharp roll off

تعداد نتایج: 239699  

Journal: :International Journal of Rf and Microwave Computer-aided Engineering 2023

This paper presents a low-loss, sharp roll-off, and wideband millimeter-wave contiguous diplexer implemented on 0.127 mm-thick TLY5 dielectric material to separate U-band frequency range into two jointed ranges of 40-50 GHz 50-60 using low-pass high-pass filter channels. In order integrate the in front end down-converter evaluate response, proposed is supported by three add-on waveguide-to-susp...

Journal: :journal of communication engineering 0
hamid radmanesh aeronautical university of science and technology, tehran, iran ashkan zhaleh islamic azad university

this paper presents a novel microstrip low-pass filter with good performance. a complete detailed theoretical analysis for the proposed filter is given using equivalent circuit models. the proposed filter applying multiple cascaded modified radial stubs resonators provides a sharp cut off frequency response that has a 185 db/ghz roll off rate. also, u-shaped attenuators provide a wide stop-band...

Journal: :IEICE Transactions 2009
Masayuki Mohri Masanori Hamamura

SUMMARY An ISI-free power roll-off pulse, the roll-off characteristic of which is tunable with one power parameter, is proposed. It is shown that the proposed pulse is advantageous in terms of the probability of error for pulse detection in the presence of a timing error among currently known good pulses, among which the raised cosine pulse, " better than " raised cosine pulse, and polynomial p...

2016
Zhan Su Erman Timurdogan Daniel Coleman Nicholas M. Fahrenkopf Thomas N. Adam Gerald Leake Douglas D. Coolbaugh David O. Caplan Michael R. Watts

A wavelength-selective 2-order 1-by-8-port optical multicast filter bank is demonstrated utilizing microring resonators, achieving ~2.6× faster roll-off than 1-order design while maintaining highly uniform responses among all eight drop ports. OCIS codes: (130.3120) Integrated optics devices; (230.5750) Resonators; (230.0250) Optoelectronics.

2013
Xiu Yin Zhang Li Gao Yunfei Cao Xiao-Lan Zhao Yong Ding

This paper presents a high-selectivity dual-band bandpass filter with independently-tunable passband frequencies. A tap-coupled structure is utilized to feed the two resonators at lower passband and a coupling structure is used to feed the two resonators at the upper passband. Two pairs of varactor-loaded resonators operating within two different frequency ranges, allow the independent passband...

Journal: :IEICE Electronic Express 2010
Karthikeyan Sholampettai Subramanian Rakhesh S. Kshetrimayum

In this paper, a simple method to obtain a notch in the ultra-wideband (UWB) bandpass filter is presented. UWB bandpass filter is designed using ground plane aperture technique. To reject the undesired wireless local area network (WLAN) signals, a complementary single split ring resonator (CSSRR) is placed under the coupled lines of the bandpass filter. The CSSRR has flat insertion loss and goo...

2013
M. Zakir Hossain Quazi D. M. Khosru

Abstract: As the device feature size enters into the nanoscale, the modeling and simulation of short channel effects in FinFETs devices become challenging. In this paper an easy approach to model short channel effects threshold voltage roll-off in nanoscale n-channel FinFETs is presented. The decrease of threshold voltage with decrease in gate length is a well-known short channel effect called ...

Journal: :IEEE Journal on Selected Areas in Communications 2002
Persefoni Kyritsi Donald C. Cox Reinaldo A. Valenzuela Peter W. Wolniansky

In this paper, we analyze the behavior of a multiple element antenna system in an indoor environment based on the measurements taken in the Lucent Bell Labs building in Crawford Hill, NJ, with a system of 12 transmitters and 15 receivers. In particular, we investigate the capacity behavior with respect to the polarization of the transmitting/receiving elements and the distance between the trans...

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