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Dive into the research topics where Mary Soria is active.

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Featured researches published by Mary Soria.


IEEE Transactions on Microwave Theory and Techniques | 2008

A Submillimeter-Wave HEMT Amplifier Module With Integrated Waveguide Transitions Operating Above 300 GHz

Lorene Samoska; William R. Deal; Goutam Chattopadhyay; David Pukala; Andy Fung; T. Gaier; Mary Soria; Vesna Radisic; Xiaobing Mei; R. Lai

In this paper, we report on the first demonstration of monolithically integrated waveguide transitions in a submillimeter-wave monolithic integrated circuit (S-MMIC) amplifier module. We designed the module for a targeted frequency range of 300-350 GHz, using WR2.2 for the input and output waveguides. The waveguide module utilizes radial -plane transitions from S-MMIC to waveguide. We designed back-to-back radial probe transitions separated by thru transmission lines to characterize the module, and have incorporated the radial -plane transitions with an S-MMIC amplifier, fabricated monolithically as a single chip. The chip makes use of an S-MMIC process and amplifier design from the Northrop Grumman Corporation, Redondo Beach, CA, using 35-nm gate-length InP transistors. The integrated module design eliminates the need for wire bonds in the RF signal path, and enables a drop-in approach for minimal assembly. The waveguide module includes a channel design, which optimizes the -plane probe bandwidth to compensate for an S-MMIC width, which is larger than the waveguide dimension, and is compatible with S-MMIC fabrication and design rules. This paper demonstrates for the first time that waveguide-based S-MMIC amplifier modules with integrated waveguide transitions can be successfully operated at submillimeter-wave frequencies.


international microwave symposium | 2006

Planar Polarimetry Receivers for Large Imaging Arrays at Q-band

Pekka Kangaslahti; Todd Gaier; M. D. Seiffert; Sander Weinreb; Dennis G. Harding; Douglas Dawson; Mary Soria; C. R. Lawrence; Benjamin Hooberman; Amber D. Miller

The characterization of the intensity fluctuations of the cosmic microwave background (CMB) will be followed by the mapping of the polarization fluctuations of the CMB. Measurement of the polarization fluctuations requires highly sensitive instruments that are only possible by increasing the number of receivers. We are developing a large receiver array for the Q, U imaging experiment (QUIET) by building individual receivers that have noise temperatures close to the physical limit and that are simple, and low cost to build and operate. We developed these planar polarimetry receivers for Q-band by designing InP MMIC amplifiers with noise below 20 K, low loss and highly balanced phase switches and an entirely planar hybrid thin film circuit for the detection of the Stokes parameters Q and U. Our receivers achieve 25 K noise temperature over 8 GHz bandwidth and provide the I, Q and U parameters simultaneously. These planar modules have a simple plug in architecture that enables automated production of a large number of receivers and simple integration of large arrays of receivers


international geoscience and remote sensing symposium | 2011

GeoSTAR-II: A prototype water vapor imager/sounder for the PATH mission

T. Gaier; Bjorn Lambrigtsen; Pekka Kangaslahti; Boon Lim; Alan B. Tanner; Dennis Harding; Heather R. Owen; Mary Soria; Ian O'Dwyer; Christopher S. Ruf; Ryan M. Miller; Bruce P. Block; Michael J. Flynn; Sterling Whitaker

We describe the development and progress of the GeoSTAR-II risk reduction activity for the NASA Earth Science Decadal Survey PATH Mission. The activity directly addresses areas of technical risk including the system design, low noise receiver production, sub-array development, signal distribution and digital signal processing.


Proceedings of SPIE | 2010

Development of MMIC receivers for cosmic microwave background interferometry

Matthew Sieth; Judy M. Lau; Patricia Voll; S. Church; Pekka Kangaslahti; Lorene Samoska; Mary Soria; Todd Gaier; Dan Van Winkle; Jeff Neilson; Sami Tantawi; Kieran Cleary; Anthony C. S. Readhead

We report on the development of some of the key technologies that will be needed for a large-format Cosmic Microwave Background (CMB) interferometer with many hundreds of wideband W-band (75-110 GHz) receivers. A scalable threebaseline prototype interferometer is being assembled as a technology demonstration for a future ground- or space-based instrument. Each of the prototype heterodyne receivers integrates two InPMonolithic Microwave Integrated Circuit (MMIC) low-noise amplifiers, a coupled-line bandpass filter, a subharmonic balanced diode mixer, and a 90° local oscillator phase switch into a single compact module that is suitable for mass production. Room temperature measurements indicate bandaveraged receiver noise temperatures of 500 K from 85-100 GHz. Cryogenic receiver noise temperatures are expected to be around 50 K.


international microwave symposium | 2014

LNA modules for the WR4 (170–260 GHz) frequency range

Mikko Varonen; Lorene Samoska; Andy Fung; S. Padmanahban; Pekka Kangaslahti; R. Lai; Stephen Sarkozy; Mary Soria; Heather R. Owen

In this work, we report on developments toward ultra-low noise amplifier modules for the WR4 frequency range, covering 170-260 GHz. The amplifiers in question utilize 35 nm HEMT transistors on a 50 μm thick InP substrate, and were developed at NGC. While recent work in this frequency band has demonstrated the usefulness and advanced technology of utilizing integrated waveguide transitions fabricated on the high dielectric constant MMIC amplifiers themselves, we present evidence here that more standard, cost effective techniques like merging low-loss quartz probes with short wire bonds can provide excellent noise performance, even at these high frequencies. The amplifiers discussed in this paper demonstrate a record 600K noise (4.8 dB) at 220 GHz and 700K (5.2 dB) noise at 240 GHz.


Proceedings of SPIE | 2010

Development of a 150 GHz MMIC module prototype for large-scale CMB radiation experiments

Patricia Voll; Judy M. Lau; Matthew Sieth; S. Church; Lorene Samoska; Pekka Kangaslahti; Mary Soria; T. Gaier; Dan Van Winkle; Sami Tantawi

A prototype heterodyne amplifier module has been designed for operation from 140 to 170 GHz using Monolithic Millimeter- Wave Integrated Circuit (MMIC) low noise InP High Electron Mobility Transistor (HEMT) amplifiers. In the last few decades, astronomical instruments have made state-of-the-art measurements operating over the frequency range of 5-100 GHz, using HEMT amplifiers that offer low noise, low power dissipation, high reliability, and inherently wide bandwidths. Recent advances in low-noise MMIC amplifiers, coupled with industry-driven advances in high frequency signal interconnects and in the miniaturization and integration of many standard components, have improved the frequency range and scalability of receiver modules that are sensitive to a wide (20-25%) simultaneous bandwidth. HEMT-based receiver arrays with excellent noise and scalability are already starting to be manufactured around 100 GHz, but the advances in technology should make it possible to develop receiver modules with even higher operation frequency - up to 200 GHz. This paper discusses the design of a compact, scalable module centered on the 150 GHz atmospheric window using components known to operate well at these frequencies. Arrays equipped with hundreds of these modules can be optimized for many different astrophysical measurement techniques, including spectroscopy and interferometry.


IEEE Transactions on Microwave Theory and Techniques | 2017

Broadband MMIC LNAs for ALMA Band 2+3 With Noise Temperature Below 28 K

David Cuadrado-Calle; Danielle George; G. A. Fuller; Kieran Cleary; Lorene Samoska; Pekka Kangaslahti; Jacob W. Kooi; Mary Soria; Mikko Varonen; R. Lai; Xiaobing Mei

Recent advancements in transistor technology, such as the 35 nm InP HEMT, allow for the development of monolithic microwave integrated circuit (MMIC) low noise amplifiers (LNAs) with performance properties that challenge the hegemony of SIS mixers as leading radio astronomy detectors at frequencies as high as 116 GHz. In particular, for the Atacama Large Millimeter and Submillimeter Array (ALMA), this technical advancement allows the combination of two previously defined bands, 2 (67–90 GHz) and 3 (84–116 GHz), into a single ultra-broadband 2+3 (67–116 GHz) receiver. With this purpose, we present the design, implementation, and characterization of LNAs suitable for operation in this new ALMA band 2+3, and also a different set of LNAs for ALMA band 2. The best LNAs reported here show a noise temperature less than 250 K from 72 to 104 GHz at room temperature, and less than 28 K from 70 to 110 GHz at cryogenic ambient temperature of 20 K. To the best knowledge of the authors, this is the lowest wideband noise ever published in the 70–110 GHz frequency range, typically designated as


international microwave symposium | 2016

Miniature packaging concept for LNAs in the 200–300 GHz range

Lorene Samoska; Andy Fung; Mikko Varonen; Robert Lin; Alejandro Peralta; Mary Soria; Choonsup Lee; Sharmila Padmanabhan; Stephen Sarkozy; Richard Lai

W


international conference on infrared, millimeter, and terahertz waves | 2008

A G-Band multi-chip MMIC T/R module for radar applications

Lorene Samoska; David Pukala; Mary Soria; Gregory A. Sadowy

-band.


International Journal of Microwave and Wireless Technologies | 2012

Technology developments for a large-format heterodyne MMIC array at W-band

Matthew Sieth; S. Church; Judy M. Lau; Patricia Voll; Todd Gaier; Pekka Kangaslahti; Lorene Samoska; Mary Soria; Kieran Cleary; Rohit Gawande; Anthony C. S. Readhead; R. Reeves; Andrew I. Harris; Jeff Neilson; Sami Tantawi; Dan Van Winkle

In this work, we describe new miniaturized low noise amplifier modules which we developed for incorporation in small-scale satellites or Cubesats, and which exhibit similar or better performance compared to previously reported LNAs in the literature. We have targeted the WR4 (170-260 GHz) and WR3 (220-325 GHz) waveguide bands for the module development. The modules include two different methods of E-plane probes which have been developed for low loss, and stability at high frequencies. MMIC LNAs were also developed for these frequency ranges and fabricated in Northrop Grumman Corporations 35 nm InP HEMT technology, and we have experimentally verified that noise performance is lower than reported in prior work. The best results include a miniature LNA module with 550K noise at 224 GHz, and a wideband LNA module with 15 dB gain from 230-280 GHz.

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Lorene Samoska

California Institute of Technology

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Pekka Kangaslahti

California Institute of Technology

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T. Gaier

California Institute of Technology

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Andy Fung

California Institute of Technology

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David Pukala

California Institute of Technology

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Goutam Chattopadhyay

California Institute of Technology

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