Performance of ultrawideband antennas

Patricia R. Foster

doi:10.1117/12.59035

1 May 1992 Performance of ultrawideband antennas

Patricia R. Foster

Proceedings Volume 1631, Ultrawideband Radar; (1992) https://doi.org/10.1117/12.59035
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

Abstract

The requirements for antennas for ultrawideband radar are extremely stringent. The design process for such an antenna must be carried out in close conjunction with the systems design, and take into account the available pulse shape from the transmitter, the pulse shape required on the target and the signal processing available. The antenna transfer functions on transmit and receive must not distort the pulse to an unacceptable level. This requirement and the wide bandwidth limit the choice of antenna particularly for enhanced gain and may require separate antennas for receive and transmit. Computations of the pulse shape at various positions in the near and far field of the antenna show that the angular zone of 'good' performance is limited in a manner analogous to that of a narrowband antenna. The methods of achieving enhanced gain are limited to the use of reflectors and arrays. The choice of subsidiary elements of these antennas is crucial to good performance and computations have shown that the achievable gain is limited.

Citation Download Citation

Patricia R. Foster "Performance of ultrawideband antennas", Proc. SPIE 1631, Ultrawideband Radar, (1 May 1992); https://doi.org/10.1117/12.59035

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available