A traveling wave amplifier based on composite right/left handed (CRLH) transmission lines periodically loaded with resonant tunneling diode pairs

Maezawa, Koichi; Koyamada, Koji; Mori, M.

doi:10.1109/iciprm.2010.5516365

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…The use of CRLH TLs may sometimes be impractical because of their finite electrode resistance and substrate current leakage, and may require loss compensation schemes. Recently, several authors have investigated methods for amplifying LH waves in 1D using transistors [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

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Composite Right- and Left-Handed Traveling-Wave Field-Effect Transistors

Narahara

2012

Active and Passive Electronic Components

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We introduce a composite right- and left-handed travelling-wave field-effect transistor (CRLH TWFET) for developing large-scale platform to support left-handed waves. The device represents two electromagnetically coupled CRLH transmission lines by capacitance and FET transconductance. Owing to the couplings, two different modes can support waves in CRLH TWFETs. It was experimentally established that waves supported by one of the modes were amplified, while those supported by the other mode were significantly attenuated. To quantify the wave propagation in CRLH TWFETs, we developed a numerical model based on the transmission line theory that well simulated measured results. This paper discusses the results of numerical calculations that validate the design criteria of CRLH TWFETs.

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Section: Introductionmentioning

confidence: 99%

“…They demonstrated a simple circuit cell consisting of two FETs operated as such gain devices. On the other hand, Maezawa et al [4] proposed a CRLH TL periodically loaded with resonant tunnel diode (RTD) pairs. The negative differential resistance (NDR) of RTDs can compensate the loss in passive CRLH TLs.…”

Section: Introductionmentioning

confidence: 99%

Composite Right- and Left-Handed Traveling-Wave Field-Effect Transistors

Narahara

2012

Active and Passive Electronic Components

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A compact very wideband amplifying filter based on RTD loaded composite right/left-handed transmission lines

Abu-Marasa

El‐Khozondar

2015

SpringerPlus

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The composite right/left-handed (CRLH) transmission line (TL) is presented as a general TL possessing both left-handed (LH) and right-handed (RH) natures. RH materials have both positive permittivity and positive permeability, and LH materials have both negative permittivity and negative permeability. This paper aims to design and analyze nonlinear CRLH-TL transmission line loaded with resonant tunneling diode (RTD). The main application of this design is a very wideband and compact filter that amplifies the travelling signal. We used OrCAD and ADS software to analyze the proposed circuit. CRLH-TL consists of a microstrip line which is loaded with complementary split-rings resonators (CSRRs), series gaps, and shunt inductor connected parallel to the RTD. The designed structure possess a wide band that ranges from 5 to 10.5 GHz and amplifies signal up to 50 %. The proposed design is of interest to microwave compact component designers.

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Soliton decay in composite right- and left-handed transmission lines periodically loaded with Schottky varactors

Narahara

2014

IEICE Electron. Express

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Soliton decay in a composite right-and left-handed transmission line periodically loaded with Schottky varactors, termed a Schottky CRLH line, is characterized to obtain broadband envelope pulses. When the three waves in the line satisfy the wave-number and frequency resonance conditions, they are governed by the three-wave resonant interaction equation, which have solutions that exhibit soliton decay, i.e., the decay of the highest frequency envelope into those carried by the other two frequency solitons. Due to the left-handedness, solitons resulting from the decay can have much smaller width than the incident envelope. This paper discusses the potential of a Schottky CRLH line as a generator of broadband envelope pulses.

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A traveling wave amplifier based on composite right/left handed (CRLH) transmission lines periodically loaded with resonant tunneling diode pairs

Cited by 3 publications

References 4 publications

Composite Right- and Left-Handed Traveling-Wave Field-Effect Transistors

Composite Right- and Left-Handed Traveling-Wave Field-Effect Transistors

A compact very wideband amplifying filter based on RTD loaded composite right/left-handed transmission lines

Soliton decay in composite right- and left-handed transmission lines periodically loaded with Schottky varactors

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