Wideband ultra-low noise cryogenic InP IF amplifiers for the Herschel mission radiometers

López-Fernández, I.; Gallego-Puyol, Juan Daniel; Díez, Carmen; Barcia, A.; Martı́n-Pintado, J.

doi:10.1117/12.459177

Cited by 26 publications

(17 citation statements)

References 9 publications

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“…With the nominal bias used in this amplifier the result obtained is lower than our previous experience [4], and similar to the best values found by others [9], [10]. Four more amplifiers were measured with similar fluctuation values, well within the initial specs.…”

Section: Gainfluctuationssupporting

confidence: 84%

“…The gain fluctuation measured in the prototype amplifier is almost a factor of two better than the value obtained in a similar project with different devices [4]. …”

Section: Resultsmentioning

confidence: 69%

“…The specifications are listed in Table I. Previous experience in the qualification of spatial projects [4] was applied to this design. A.…”

Section: Design and Fabricationmentioning

confidence: 99%

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Development of Cryogenic IF Low-Noise 4-12 GHz Amplifiers for ALMA Radio Astronomy Receivers

López-Fernández

Puyol

Gonzalez

et al. 2006

2006 IEEE MTT-S International Microwave Symposium Digest

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We describe the design and results of a wide band C-X cryogenic IF amplifier developed for band 9 (602-720 GHz) of ALMA radio telescopes. A cryogenic 4-12 GHz isolator will be used at the input to improve matching. Several units have been fabricated and its results are presented. The amplifiers utilize HRL InP transistors to achieve a noise temperature of 5.3 K (0.08 dB NF) on average. Gain fluctuations are critical for the project.Values of Allan variance lower than 4.1 10-9 (0.1 s < T < 10 s) have been obtained.

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Section: Gainfluctuationssupporting

confidence: 84%

“…The gain fluctuation measured in the prototype amplifier is almost a factor of two better than the value obtained in a similar project with different devices [4]. …”

Section: Resultsmentioning

confidence: 69%

See 1 more Smart Citation

Development of Cryogenic IF Low-Noise 4-12 GHz Amplifiers for ALMA Radio Astronomy Receivers

López-Fernández

Puyol

Gonzalez

et al. 2006

2006 IEEE MTT-S International Microwave Symposium Digest

Self Cite

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“…The signal passes through the chip where the MKIDs modify the amplitude and phase of the readout tones, and is transferred back to the 3-K stage using an identical filter, DC block and NbTi cable. At 2.7 K we use a dual stage Yebes 4-8 GHz low noise amplifier (LNA) with a noise temperature of 5 K to amplify the readout signal (López-Fernández et al 2003). The bias of the second stage of the LNA is slightly higher than nominal to increase the dynamic range of the LNA to a 1 dB input compression point of −31 dBm which is essential to prevent clipping of the LNA by the peak envelope power (PEP) of the readout signal:…”

Section: Readout Systemmentioning

confidence: 99%

“…The estimated power consumption for such a readout system is of the order of 15-25 mW/pixel, dissipated at ambient temperature, assuming a 70% point of load efficiency and depending strongly on the exact requirements for the final instrument. A single cryogenic HEMT LNA similar to the one used in this paper (López-Fernández et al 2003) must be used. The nominal power dissipation is 5 mW at 4 K, operation at higher temperatures could be considered with negligible, or limited loss in system sensitivity.…”

Section: Towards Space Qualification Of the Mkid Readout Systemmentioning

confidence: 99%

A kilo-pixel imaging system for future space based far-infrared observatories using microwave kinetic inductance detectors

Baselmans

Bueno

Yates

et al. 2017

A&A

113

124

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Aims. Future astrophysics and cosmic microwave background space missions operating in the far-infrared to millimetre part of the spectrum will require very large arrays of ultra-sensitive detectors in combination with high multiplexing factors and efficient lownoise and low-power readout systems. We have developed a demonstrator system suitable for such applications. Methods. The system combines a 961 pixel imaging array based upon Microwave Kinetic Inductance Detectors (MKIDs) with a readout system capable of reading out all pixels simultaneously with only one readout cable pair and a single cryogenic amplifier. We evaluate, in a representative environment, the system performance in terms of sensitivity, dynamic range, optical efficiency, cosmic ray rejection, pixel-pixel crosstalk and overall yield at an observation centre frequency of 850 GHz and 20% fractional bandwidth. Results. The overall system has an excellent sensitivity, with an average detector sensitivity NEP det = 3 × 10 −19 W/ √ Hz measured using a thermal calibration source. At a loading power per pixel of 50 fW we demonstrate white, photon noise limited detector noise down to 300 mHz. The dynamic range would allow the detection of ∼1 Jy bright sources within the field of view without tuning the readout of the detectors. The expected dead time due to cosmic ray interactions, when operated in an L2 or a similar far-Earth orbit, is found to be <4%. Additionally, the achieved pixel yield is 83% and the crosstalk between the pixels is <−30 dB. Conclusions. This demonstrates that MKID technology can provide multiplexing ratios on the order of a 1000 with state-of-the-art single pixel performance, and that the technology is now mature enough to be considered for future space based observatories and experiments.

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Far-infrared imaging and spectroscopic instrumentation

Swinyard

Wild

2013

Observing Photons in Space

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Wideband ultra-low noise cryogenic InP IF amplifiers for the Herschel mission radiometers

Cited by 26 publications

References 9 publications

Development of Cryogenic IF Low-Noise 4-12 GHz Amplifiers for ALMA Radio Astronomy Receivers

Development of Cryogenic IF Low-Noise 4-12 GHz Amplifiers for ALMA Radio Astronomy Receivers

A kilo-pixel imaging system for future space based far-infrared observatories using microwave kinetic inductance detectors

Far-infrared imaging and spectroscopic instrumentation

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