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Technical Articles
K-Band PA Design for Satcom Applications
K/Ka-band (26.5-40GHz) satellite communications (satcom) systems are
popular for global broadband services, offering universal access to faster
data rates due to the higher bandwidths available in this frequency
spectrum. This article describes the design of the Leonis chipset using
the Cadence AWR Design Environment platform. The chipset includes
in-phase quadrature (I/Q) and subharmonic mixers, upconverter and
downconverter core chips, switches, phase shifters, low-noise amplifiers
(LNAs), and PAs. Within this chipset is the company's LE-Ka1330308, a
high-power MMIC amplifier. Arralis has successfully demonstrated trans-
ceiver architectures for both uplink and downlink communications.
Together We Can Grow WIM
For more than a decade now, Sherry Hess has been active in advocating
for the greater involvement of women within the IEEE Microwave Theory
and Techniques Society (MTT-S) organization. She sees her work with
Women in Microwaves (WIM)/ Women in Engineering (WIE) as a key means
for boosting the number of female IEEE Members by increasing the
visibility of women in engineering and creating both networking and
mentoring opportunities. In this article, Sherry describes her advocacy
for the greater involvement of women in the IEEE MTT-S organization.
Sherry is now the fourth female voting member of the MTT-S AdCom
committee.
LNA Receiver Design for Integrated Automotive
Wireless Systems
Demand for automotive infotainment and telematics services continues
to grow, calling for greater integration of antennas and radio front-end
electronics housed in the smallest possible footprint and operating in the
tightly spaced GPS, cellular, V2X, and satellite digital audio radio service
(SDARS) frequency bands. These requirements present numerous design
challenges that can be overcome using best practice design techniques,
the appropriate filter and semiconductor technology, and design
software that supports matching network/filter synthesis and RF-aware
circuit simulation.
Package model input/output (I/O) port simulation
setup and resulting mesh in AWR Analyst™ software
NIWeek Women's Leadership Forum Panel:
Sherry Hess, Dr. Irene Petrick, and Dr. Sharon L. Wood
Input impedance of the two narrowband filters
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