Several engineering programs have introduced courses related to sustainability following the Brundtland Commission report in 1987. Available literature suggests that environmental engineering programs have initiated most of such activity, but only a few activities are reported in electrical and computer engineering programs. To fill this gap, a project to infuse sustainability into the electrical and computer engineering curriculum was initiated in 2009 in the Electrical and Computer Engineering department at Kansas State University with support from the National Science Foundation. The goal of the project is to prepare engineers, who are equipped to meet the growing needs of society, as well as to bolster enrollment by aligning the curriculum with needs of the current generation of students, who wish to involve themselves in work that benefits society. The paper describes activities related to sustainability including hands-on experiments in renewable energy, development of a rooftop solar and wind generation system, and associated outreach activities. Finally, results of assessments conducted in freshman classes provide a view of student knowledge related to sustainability and renewable energy as they enter their college experience.

A low-volume low-mass low-power ultra-high-frequency radio transceiver for future planetary missions is described. The project targets a volume of less than 10 , mass of less than 50 grams, and power consumption of 50 mW on receive and 100 mW, 300 mW, or 3 W on transmit (for 10 mW, 100 mW, and 1 W output options). The transmitter design supports convolutionally coded binary phase-shift keying (BPSK), RC-BPSK, and quadrature phase-shift keying transmission from 1 to 256 kbps. Command/control instructions can be received at 2 or 8 kbps, with a sensitivity of better than 120 dBm. In addition to its low volume/mass/power features, temperature compensation to 100 C and radiation tolerance to 100 krad allow operation outside of thermally controlled, shielded enclosures, further reducing the mass and complexity of exploration vehicles. The design is described in a top-down format, beginning with system requirements and proceeding through digital modem algorithm development, discussion of the silicon-on-sapphire CMOS process used and elaboration of key blocks in the radio-frequency (RF) integrated circuit design. Techniques to address coupling between high-sensitivity RF and on-chip digital circuits are also presented, and test results are given for prototypes of all major functions. Although designed for the Martian environment, the transceiver is expected to be useful in other proximity links where a small low-power radio compatible with Prox-1 space-link protocols is desired.

This paper investigates the problem of developing very high Q (>100), integrated, continuous-time bandpass filters for use in radio receivers. A major problem in implementing such filters is the need for real-time tuning of the filter's transfer function. This paper introduces a new tuning approach that uses a tuning reference signal which is orthogonal to the signal being processed so that both signals may be present in the filter simultaneously. A specialization of this approach that use a spread-spectrum modulated reference for orthogonality is investigated in detail. Unlike existing approaches for tuning high Q filters, the new technique uses no filter switching, makes no assumptions about the spectral content of the filter's input, and does not require circuitry for measuring the input signal's characteristics. The new approach is found to be suitable for use with two of the most popular signaling formats-wideband frequency modulation, and low dimension digital phase modulations such as QPSK.>