Browsing by Author "Akgiray, Ahmed Halid"

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Cryogenic 1.2 to 116 GHz receiver for large arrays

Weinreb, S.; Mani, H.; Zhong, W.; Flygare, J.; Billade, B.; Akgiray, Ahmed Halid; Dong, L. (IEEE, 2018)

Current and future large arrays for radio astronomy are compared and the Next Generation Very Large Array, ngVLA, is introduced. Receiver requirements are described and a 4-feed system covering 1.2 to 116 GHz, in a single ...
Design of compact monopulse standing wave slotted array in ku-band

Akgiray, Ahmed Halid; Nawaz, Wasim (IEEE, 2019)

In modern radar and communication systems, high gain, high power capability and low-profile front-end antenna systems are frequently utilized. In this paper, a compact, lightweight, high reflection bandwidth and high gain ...
An MMIC low-noise amplifier design technique

Varonen, M.; Reeves, R.; Kangaslahti, P.; Samoska, L.; Kooi, J. W.; Cleary, K.; Gawande, R. S.; Akgiray, Ahmed Halid; Fung, A.; Gaier, T.; Weinreb, S.; Readhead, A. C. S.; Lawrence, C.; Sarkozy, S.; Lai, R. (IEEE, 2016-03)

In this paper we discuss the design of low-noise amplifiers (LNAs) for both cryogenic and room-temperature operation in general and take the stability and linearity of the amplifiers into special consideration. Oscillations ...
Side-channel attack to quantum communications by exploiting electromagnetic radiations of the single photon detectors

Jam, Naser Chamani (2020-08-30)

In this thesis an unprecedented cyber-physical attack which can be a game changer in the quantum cryptosystems' security is explained. This attack is the first non-optical patented intercept in quantum field that is based ...
X- To Ka- Band cryogenic LNA module for very long baseline interferometry

Fung, A.; Samoska, L.; Bowen, J.; Montanez, S.; Kooi, J.; Soriano, M.; Jacobs, C.; Manthena, R.; Hoppe, D.; Akgiray, Ahmed Halid; Lai, R.; Mei, X.; Barsky, M. (IEEE, 2020)

We report a new result of a packaged low noise amplifier (LNA) module with wide bandwidth of 5 to 35 GHz and low noise temperature performance of 10 -18 K, while operated at 10 K ambient. The LNA used 3-stages of sub-50 ...