A Novel Design of Frequency Tripler Using Composite Right/Left Handed Transmission Line

Seo, Sook Jae; Jeong, Yongchae; Lim, Jongsik; Gray, Blake; Kenney, J.S.

doi:10.1109/mwsym.2007.380359

Cited by 9 publications

(9 citation statements)

References 8 publications

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“…Therefore, the negative value of effective permeability in the vicinity of resonance inhibits signal propagation. In addition, the T-SRR of the MNG metamaterial exhibits positive phase response þ90 (phase lead) and the general resonator of the right-handed has negative phase response À90 (phase lag), as shown in Figure 2 [9]. From the figure, the experimental result for the T-SRR exhibits positive phase response þ90 (phase lead).…”

Section: High-ql T-srr Structurementioning

confidence: 84%

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A low phase noise oscillator with a high‐Q split ring resonator using MNG metamaterial

Yoon

Lee

2011

Micro & Optical Tech Letters

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In this article, a novel high QL triple‐split ring resonator (T‐SRR) of mu‐negative metamaterial is suggested.It is used in the design of an I‐ band oscillator. A very low phase noise can be obtained for the oscillator due to the sharp band‐rejection characteristic of T‐SRR. The oscillator is designed to operate at 10 GHz using the novel T‐SRR. Experiments show that the output power is 9.82 dBm, the second harmonic suppression is −26.48 dBc, and the phase noise is −105.05 dBc/Hz at a 100‐kHz offset. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2967–2971, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26404

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Section: High-ql T-srr Structurementioning

confidence: 84%

“…In general, all modern military satellite communication systems use oscillators for the I-band (8)(9)(10), where it is transmitted in piloting radar using the I-band satellite [1]. There have increasingly been requests for low phase-noise in oscillator design, because it determines the overall performance of the systems [2].…”

Section: Introductionmentioning

confidence: 99%

A low phase noise oscillator with a high‐Q split ring resonator using MNG metamaterial

Yoon

Lee

2011

Micro & Optical Tech Letters

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“…An inverter amplifier was used after the phase shifter and its gain was designed to be slightly larger than the conversion gain of the SHM to account for the losses in the phase shifter. The output of the feedforward circuit is given by (8) where is the gain of the feedforward amplifier. This output signal is then used as one of the inputs to the subtractor circuit that cancels the fundamental frequency signal present in the SHM output.…”

Section: B Fundamental Feedforward Circuitmentioning

confidence: 99%

“…Therefore, custom-built devices such as heterostructure and quantum barrier varactor diodes [1]- [3] with strongly nonlinear -curves are regularly used in frequency triplers. To circumvent the use of nonstandard semiconductor devices, triplers can be realized by over-driving a transistor with the sinusoidal input signal to generate a clipped waveform rich in odd-order harmonics [4]- [8]. This method, however, usually requires strong filtering at the output to remove the fundamental and other unwanted frequencies.…”

Section: Introductionmentioning

confidence: 99%

A Frequency Tripler Using a Subharmonic Mixer and Fundamental Cancellation

Jackson

Mazzilli

Saavedra

2009

IEEE Trans. Microwave Theory Techn.

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Abstract-A new odd-order frequency multiplier topology is demonstrated in this work that uses a subharmonic mixer to realize a frequency tripler. A feedforward circuit is used for fundamental cancellation at the output and eliminates the need for filtering structures. For demonstrative purposes, and to validate the concept, a 1-3-GHz proof-of-concept frequency tripler circuit was fabricated. The tripler circuit achieved a measured output fundamental suppression of up to 30 dB below the third harmonic and a conversion gain of up to 3 dB. The circuit was implemented in CMOS 0.18-m technology and the chip area was 0.8 mm 2 including bonding pads.Index Terms-CMOS analog integrated circuits, frequency conversion, frequency tripler, monolithic microwave integrated circuits (MMICs), subharmonic mixer (SHM).

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“…The most widely used method is a frequency multiplier using the nonlinearity of a transistor [2]- [3]. Due to the periodic harmonic response of a transistor, the wanted frequency components at integer multiple frequencies of the fundamental component (f o ) can be obtained.…”

Section: Introductionmentioning

confidence: 99%