Abstract:
Compact range measurements with a serrated edge and a blended, rolled edge reflector are compared. This is done by using simulated antenna pattern and backscattered field...Show MoreMetadata
First Page of the Article
Abstract:
Compact range measurements with a serrated edge and a blended, rolled edge reflector are compared. This is done by using simulated antenna pattern and backscattered field measurements. The measurement errors caused by stray signals emanating from the edge termination of reflector are discussed. It has been found that different stray signal sources impact on the measurement accuracy from different aspect angles. In addition, the measurement accuracy achievable with different reflector systems is dependent on the characteristics of the antenna or scatterer under test. From these findings, one will be better able to understand how well these two types of reflectors will perform in terms of accurately providing the proposed measurements. Consequently, one will be able to choose the best reflector design for his/her application.
Published in: IEEE Transactions on Antennas and Propagation ( Volume: 45, Issue: 1, January 1997)
DOI: 10.1109/8.554241
First Page of the Article
Citations are not available for this document.
Cites in Patents (3)Patent Links Provided by 1790 Analytics
1.
Barnes, Mark A.; Gilbert, Charles G.; Fluhler, Herbert U.; Schantz, Hans G.; Nag, Soumya K.; Dickson, David M., "IMPULSE RADAR ANTENNA ARRAY AND METHOD"
Inventors:
Barnes, Mark A.; Gilbert, Charles G.; Fluhler, Herbert U.; Schantz, Hans G.; Nag, Soumya K.; Dickson, David M.
Abstract:
An antenna array comprising a ground plane and a plurality of elements mounted thereon, said elements being capable of emitting and receiving ultra wideband emissions. Elements are arrayed on the ground plane in two parallel rows, a transmitting row, and a receiving row, such that a given element in the receiving row is aligned in at least one direction with a corresponding element in the transmitting row. Additionally, the elements are configured on the ground plane to elicit a symmetrical product response in the azimuthal plane, and to produce horizontally polarized signals. An alternative embodiment places the elements with unique inter-element spacing within the rows. An embodiment comprises a fence structure between rows. A method for use comprises the step of transmitting a signal via an element in the transmitting row and receiving said signal through an element in the receiving row, not aligned with the transmitting element.
Assignee:
TIME DOMAIN CORP
Filing Date:
30 November 2001
Grant Date:
23 December 2003
Patent Classes:
Current U.S. Class:
343893000, 342027000
Current International Class:
G01S0130400000
2.
Barnes, Mark A.; Nag, Soumya K.; Fluhler, Herbert U., "METHOD OF ENVELOPE DETECTION AND IMAGE GENERATION"
Inventors:
Barnes, Mark A.; Nag, Soumya K.; Fluhler, Herbert U.
Abstract:
A method of detecting objects reflecting impulse waveforms of generating a detection envelope by receiving a reflected waveform, delaying said waveform by a peak-to-zero delay (PZD) interval. The PZD interval is the time between a maximum energy displacement in the impulse waveform and an adjacent zero crossing. The reflected waveform and its delayed version are squared and then summed to create the envelope. If the envelope is to be defined in terms of voltage, the root of the sum of the squares may be found. Also a method for generating an image using the PZD interval in back-projection techniques is described wherein a sampling point is chosen on each of a plurality of reflected waveforms. The values of the samples are summed and the waveforms are delayed by the PZD interval and the values of the sampling points are again summed. The two sums are squared and added together to generate an image envelope.
Assignee:
TIME DOMAIN CORP
Filing Date:
26 February 2002
Grant Date:
22 April 2003
Patent Classes:
Current U.S. Class:
342022000, 34202500R
Current International Class:
G01S0130000000
3.
Burnside, Walter D.; Steinberger, David; Lee, Teh-Hong; Sickles, Kevin, "ROLLED EDGE COMPACT RANGE REFLECTORS"
Inventors:
Burnside, Walter D.; Steinberger, David; Lee, Teh-Hong; Sickles, Kevin
Abstract:
The present invention includes rolled edge compact range reflectors and reflector systems. This invention also includes machines or electronic apparatus using these aspects of the invention. The present invention also includes methods and processes for making and using these devices and systems. In a preferred embodiment, lightweight foam panels are added to the periphery of a sharp edge terminated compact range reflector. These foam panels may be shaped using simple two-dimensional cutting apparatus. The foam panels are then preferably positioned around the edge of the reflector with the planar edges of the foam pieces abutting one another so as to form a substantially continuous rounded edge to the reflector. The edge may then be shaped, filled, sanded, or coated to improve performance of the resultant reflector.
Assignee:
THE OHIO STATE UNIVERSITY
Filing Date:
20 July 2000
Grant Date:
15 January 2002
Patent Classes:
Current U.S. Class:
342005000
Current International Class:
H01Q0151400000
