AWR Corporation is an electronic design automation software company, founded by Dr. Joseph E. Pekarek, with Ted A. Miracco and Dr. Stephen A. Maas. The company, formerly known as Applied Wave Research, Inc., is a National Instruments company. Other locations include research and development centers in: San Jose, California; Boulder, Colorado; Helsinki, Finland; and Mequon, Wisconsin. The company has additional subsidiaries operating in the United Kingdom, France and Japan. Investors in AWR include CMEA Ventures, Intel Capital and Synopsys Inc. The company develops, markets, sells and supports engineering software, which provides a computer-based environment for the design of hardware for wireless and high speed digital products. AWR software is used for radio frequency , microwave and high frequency analog circuit and system design. Typical applications include cellular and satellite communications systems and defense electronics including radar, electronic warfare and guidance systems. AWR's product portfolio includes Microwave Office, Visual System Simulator , Analog Office, APLAC, AXIEM and Analyst. AWR's worldwide customers include companies involved in the design and development of analog and mixed signal semiconductors, wireless communications equipment, aerospace and defense systems. Wikipedia.
Miettinen P.,Aalto University |
Honkala M.,Aalto University |
Roos J.,AWR Corporation |
Valtonen M.,Aalto University
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems | Year: 2011
This paper presents a robust partitioning-based model-order reduction (MOR) method, PartMOR, suitable for reduction of very large RLC circuits or RLC-circuit parts of a non-RLC circuit. The MOR is carried out on a partitioned circuit, which enables the use of low-order moments and macromodels of few elements, while still preserving good accuracy for the reduction. As the method produces a positive-valued, passive, and stable reduced-order RLC circuit (netlist-in-netlist-out), it can be used in conjunction with any standard analysis tool or circuit simulator without modification. It is shown that PartMOR achieves excellent reduction results in terms of accuracy and reduced CPU time for RLC, RC, and RL circuits. © 2011 IEEE.
Maas S.,AWR Corporation
IEEE Microwave Magazine | Year: 2011
Steve Maas share views on the challenges that need to be addressed after the explosion of the space shuttle Challenger. All future shuttle flights have been postponed, and panic ensues as satellites that desperately need to be launched are sitting in storage. One option is leftover Mercury launch vehicles, originally produced for the first US manned space program. The transponder is critical to making a final course correction, so if it fails in launch, the satellite almost certainly will not go into the correct orbit. The diodes are ancient point-contact ones in cartridge mounts. It was observed that the diodes have been replaced, and now the new ones are being blown, presumably by transmitter leakage.
Kuo J.-J.,MediaTek Inc. |
Lien C.-H.,AWR Corporation |
Tsai Z.-M.,National Chung Cheng University |
Lin K.-Y.,National Taiwan University |
And 3 more authors.
IEEE Transactions on Microwave Theory and Techniques | Year: 2012
In this paper, a novel 180° hybrid with different input frequencies is proposed to combine RF and local oscillator (LO) signals with different frequencies in a gate/base-pumped harmonic mixer. The detailed analysis and design procedures are presented in this paper. To further reduce the chip size, the multilayer metallization above the lossy silicon substrate is employed to implement the hybrid. A V-band down-converted 2 × harmonic mixer in 90-nm CMOS process and a D-band down-converted 4 × harmonic mixer in the 130-nm SiGe process are designed, fabricated, and measured to verify the concept. The 2 × harmonic mixer possesses 0-dB conversion gain at 60 GHz with 0-dBm LO power with merely 2.4-mW dc power. The 4 × harmonic mixer achieves 0.5-dB conversion gain at 120 GHz with 2-dBm LO power and 27.3-mW dc power. With the proposed reduced-size 180° hybrid, gate/base-pumped harmonic mixers are very attractive in transceivers demanding low LO frequency and power. © 1963-2012 IEEE.
Maas S.,AWR Corporation
IEEE Microwave Magazine | Year: 2012
IBM's Electronic Circuit Analysis Program (ECAP) analyzes linear circuits described by LCR components and by controlled and independent sources. On the other hand, COMPACT displays a remarkable combination of simplicity and important features. COMPACT used a cascade formulation, in which each circuit element was treated as a two-port block that could be cascaded with other blocks or connected in series or parallel. While SPICE has major limitations for use with microwave circuits, it was still used to some degree for microwave design. Harmonica/Spectre used SPICE models and an advanced sparse-matrix solver that was similar to the one in SPICE3. Object-oriented design simplifies the design and maintenance of complex software systems, allowing greater versatility, as objects can be used in a multiplicity of ways.
Yang B.B.,Sandia National Laboratories |
Katz S.L.,General Electric |
Willis K.J.,AWR Corporation |
Weber M.J.,Stanford University |
And 3 more authors.
IEEE Transactions on Terahertz Science and Technology | Year: 2012
The successful engineering of sources and components in the terahertz (THz) regime benefits from good characterization of materials properties. Previous research reports have shown that calculations of material parameters that are valid at radio frequencies are no longer accurate at THz frequencies. A high-quality-factor quasi-optical hemispherical resonator operating between 300 GHz-1 THz has been designed and implemented for the measurement of electronic properties of conductors as well as low-loss dielectrics. This apparatus is the first quasi-optical resonator to achieve Q ≈ 4 × 10 5 at frequencies greater than 400 GHz in the THz regime. It is also the first open resonator designed to measure effective conductivity at these frequencies. This paper discusses the techniques that enabled high-Q operation in the THz regime. It also includes measurements of silicon with different doping densities and conductors of various surface roughness values with comparison to theoretical predictions. © 2012 IEEE.