Miniaturized artificial-transmission-line monolithic millimeter-wave frequency doubler

Kangaslahti, Pekka; Alinikula, P.; Porra, V.

doi:10.1109/22.842021

Cited by 27 publications

(8 citation statements)

References 6 publications

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“…This would be necessary for high-power FETs due to their significant input and output capacitances [28]. The application of ATLs in active MMICs has been demonstrated by others [17].…”

Section: Discussionmentioning

confidence: 99%

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Compact dual-fed distributed power amplifier

Eccleston

2005

IEEE Trans. Microwave Theory Techn.

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Abstract-The dual-fed distributed amplifier (DFDA) allows efficient combining of field-effect transistors (FETs) at the device level without using -way power combiners. However, the FETs must be spaced 180 , resulting in physically large circuits. In this paper, meandered artificial transmission lines (TLs) comprised of microstrip lines periodically loaded with short open-circuit stubs can be used in place of TLs to reduce the size. The approach incorporates FET input and output capacitances with the artificial TLs, thereby eliminating their detrimental effects on bandwidth and performance. Both simulation and experimental results of a class-A three-FET single-ended DFDA designed to operate at 1.8 GHz demonstrate the feasibility of this approach and the validity of the design method. The size reduction is approximately one-third compared to realization using microstrip lines only, and the maximum efficiency is greater than 35% over a bandwidth of 15%.Index Terms-Distributed amplifiers, microstrip circuits, microwave field-effect transistor (FET) amplifiers, microwave power FET amplifiers.

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“…This would be necessary for high-power FETs due to their significant input and output capacitances [28]. The application of ATLs in active MMICs has been demonstrated by others [17].…”

Section: Discussionmentioning

confidence: 99%

“…Meandering of the TLs can be used to achieve compactness [16]. The use of artificial transmission lines (ATLs) in place of TLs can be used to reduce the length [17]- [19]. Photonic-bandgap structures that can be implemented in a microstrip line allow reduction of length [20], but explicit design formulas are as yet unavailable.…”

Section: Introductionmentioning

confidence: 99%

Compact dual-fed distributed power amplifier

Eccleston

2005

IEEE Trans. Microwave Theory Techn.

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“…The optimum load can be found, using the load-pull technique. The initial load impedance can be guessed by [10] n n n V Z I = (4) where V n is the n th harmonic drain voltage and I n is the drain current. The simulated drain current and the output power spectrum of the purposed push-push frequency doubler, at input power of 5dBm, are shown in Figure 7 Output power (dBm) Figure 8.…”

Section: Doubler Circuitmentioning

confidence: 99%

Compact frequency multiplier using an artificial left-handed transmission line

Jadpum

Tangit

Bunnjaweht

2009

2009 6th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technolog

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This paper presents a compact size frequency doubler using an artificial transmission line design approach. The multiplier features conversion gain and high fundamental signal rejection. The frequency multiplying is employing the current combining push-push technique. Two GaAs FETs are driven by 900 MHz anti-phase signals from a simple LHM-TL phase shifter instead of the conventional balun/power divider. The transistor can be loaded directly onto the input and output port of the LHM-TL phase shifter since FETs virtually need no input power. The experimental results show the excellent agreements between the design and ADS ® simulations. The frequency doubler has a conversion gain of 5 dB and 30 % of size reduction compare to the conventional transmission line/hybrid circuit implementation.

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“…To overcome this problem, the signal can be generated by combining a low frequency local oscillator (LO) and several stages of frequency multipliers. Most of the proposed multipliers frequency structures consist of several stages with large dimensions [3]- [4]. They are associated with two pole high-pass filters [5 ]- [7] and buffer amplifiers [5 ]- [6].…”

Section: Introductionmentioning

confidence: 99%

A V-band MMIC frequency quadrupler with active input matching

Abata

Bekkali

Mazer

et al. 2015

2015 International Conference on Electrical and Information Technologies (ICEIT)

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In this paper, a V-band frequency quadrupler circuit is presented. This quadrupler operates in the millimeter-wave band [56-64 GHz] and it is designed according to the MMIC technology (Monolithic Microwave Integrated Circuit) in PHIS process from UMS foundry. The frequency quadrupler circuit will be used to generate carrier frequencies in the range of [56-64 GHz] in order to perform the RF signal demodulation of wireless communication link in the mm-wave band. The required output power is obtained by a buffer amplifier on the output. By adjusting the common-gate PHEMT circuit connected to the input, The conversion gain is about 6.9 dB and the input return-loss can be tuned for near ideal son match (>18 dB). The signal at the fundamental frequency is rejected with a rate greater than 40 dB compared to the desired signal. Keywords-Mm-wave band, two pole high pass jilter, buffer amplifier, Active input matching, MMIC Technology 978-1-4799-7479-5/15/$31.00 ©2015 IEEE

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Miniaturized artificial-transmission-line monolithic millimeter-wave frequency doubler

Cited by 27 publications

References 6 publications

Compact dual-fed distributed power amplifier

Compact dual-fed distributed power amplifier

Compact frequency multiplier using an artificial left-handed transmission line

A V-band MMIC frequency quadrupler with active input matching

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