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Book Ka Band MMIC Subarray Technology Program Ka Mist

Download or read book Ka Band MMIC Subarray Technology Program Ka Mist written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-10-26 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The broad objective of this program was to demonstrate a proof of concept insertion of Monolithic Microwave Integrated Circuit (MMIC) device technology into an innovative (tile architecture) active phased array antenna application supporting advanced EHF communication systems. Ka-band MMIC arrays have long been considered as having high potential for increasing the capability of space, aircraft, and land mobile communication systems in terms of scan performance, data rate, link margin, and flexibility while offering a significant reduction in size, weight, and power consumption. Insertion of MMIC technology into antenna systems, particularly at millimeter wave frequencies using low power and low noise amplifiers in close proximity to the radiating elements, offers a significant improvement in the array transmit efficiency, receive system noise figure, and overall array reliability. Application of active array technology also leads to the use of advanced beamforming techniques that can improve beam agility, diversity, and adaptivity to complex signal environments. Pottenger, Warren Unspecified Center NAS3-25718

Book Multi Chip Module MCM Design for Millimeter wave Applications

Download or read book Multi Chip Module MCM Design for Millimeter wave Applications written by Ghulam Mehdi and published by . This book was released on 2018-10 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the advancement in the era of monolithic microwave integrated circuits (MMIC) technology, the trend for realization of radio systems is shifting towards millimeter-wave (mmW) frequencies. The obvious advantages at mmW bands are higher bandwidth, fine spatial resolution and producibility of miniaturized radio systems with high level integration. The wide spectrum of applications at mmW frequencies encompasses various applications such as satellite communication, radar systems, remote sensing, communication data links etc. The MMIC technology enables the fabrication of miniaturized, low-cost, high-performance and highly reliable mmW radio systems. However, due to the scale downsizing of the circuits proportional to the wavelength, the design of mmW multi-chips module (MCM) is challenging. One of the emerging applications in mmW bands is passive imager for security screening purposes. Such imagers are deployed for detection of the concealed hazardous objects on human body and contraband items. The 2-D synthetic aperture interferometric technique is being extensively employed in passive imaging systems due to its distinct features such as larger field of view (FOV) and high imaging rate. In the first part of this book, design and development of Ka-band MCM receivers at 34 GHz is presented. The receiver employs single-stage heterodyne architecture at 2 GHz intermediate frequency (IF). The complete MCM is realized on a single substrate except for the IF and power distribution section. This facilitates seamless integration, ease of manufacturing and results in a cost effective solution for mass production of such receivers. Further, a two-layer planar technology is adopted for compact realization. Experimental results of the front-end module fabricated with laser structuring are presented as well. Presence of Foreign object debris (FOD) at airport runways is an immense threat to flight safety. Such objects may cause potential damage to the aircraft especially during the critical phases like take off and landing. In the second part of the book, a capability demonstration model for a Ka-band FOD detection sensor employing multi-layer system-on-substrate (SoS) approach is presented. The concept of multi-layer system-on-substrate is introduced. The frequency modulated continuous-wave (FMCW) front-end transceiver and the integrated transmit and receive antennas are realized in multi-layer configuration. The front-end transceiver is mainly designed employing substrate integrated waveguide (SIW) circuits on low-cost 12 mil thick R4003C substrate. The front-end transceiver comprises of MMICs and passive structures such as SIW band-pass filters, SIW Wilkinson power divider and SIW-to-microstrip transitions. In order to couple two SIW substrate layers with different thicknesses, a coaxial bead is introduced for low-loss coupling between the two channels. Further, the design of a planar travelling-wave type slot array antenna in SIW technology is presented. Unlike conventional coaxial matched loads used in one of the reported SIW traveling-wave linear slot array, a resistive match is introduced for termination of such antenna in SIW technology. A virtually grounded thin film resistor (TFR) is employed for array termination. An 8x8 array is designed with antenna feed network. Two-layer topology is adopted for compact realization and this mitigates the unwanted radiations from the feed network. The whole integrated antenna is simulated in Ansoft HFSS®. The proposed approach considerably reduces the cost and weight of the antenna while the conformability of the antenna is retained as well. The antenna can be integrated with rest of the planar hardware of a millimeter-wave system. The proposed antenna can be used for a variety of mmW broadband commercial applications. The simulation results of the proposed antenna and front-end components are presented.

Book Scientific and Technical Aerospace Reports

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Book Handbook of Space Technology Status and Projections

Download or read book Handbook of Space Technology Status and Projections written by R. Michael Hord and published by CRC Press. This book was released on 2019-08-08 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents current and anticipated quantitative values for a wide range of cirtical figures of merit which characterize technological capabilities in the major discipline areas of space technology. The projections are based on historical data and the considered opinions of knowledgable experts in government and industry who are active contributors in their respective fields.

Book Monolithic Microwave Integrated Circuits MMICs

Download or read book Monolithic Microwave Integrated Circuits MMICs written by H. L. Hartnagel and published by . This book was released on 1986 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Conference Digest

Download or read book Conference Digest written by Richard J. Temkin and published by . This book was released on 1987 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Numerical Methods for Passive Microwave and Millimeter Wave Structures

Download or read book Numerical Methods for Passive Microwave and Millimeter Wave Structures written by Roberto Sorrentino and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 1989 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Very Good,No Highlights or Markup,all pages are intact.

Book Conference Digest

Download or read book Conference Digest written by and published by . This book was released on 1987 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book NASA Tech Briefs

Download or read book NASA Tech Briefs written by and published by . This book was released on 1991 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Optical Devices and Methods for Microwave millimeter wave and Frontier Applications

Download or read book Optical Devices and Methods for Microwave millimeter wave and Frontier Applications written by Mario N. Armenise and published by SPIE-International Society for Optical Engineering. This book was released on 1998 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics in these papers presented at the SPIE Annual Meeting include: laser systems and components; signal processing; analogies in component design; and analogies in devices and systems.

Book Antenna Systems for Modern Wireless Devices

Download or read book Antenna Systems for Modern Wireless Devices written by Shiban K. Koul and published by Springer Nature. This book was released on with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: