What question did this study set out to answer?

To establish analytical insights and quantitative design guidelines that minimize the required number of delay-line taps for broadband adaptive antenna nulling.

November 1, 1981IRE Transactions on Antennas and Propagation

Wide-band adaptive antenna nulling using tapped delay lines

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Authors

JMJ. MayhanUniversity of Akron ASAlan J. SimmonsVanderbilt University WCWilliam C. CummingsUniversity of Miami

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Implication

Analytical modeling demonstrates optimal tapped delay-line configurations for broadband antenna array nulling, suggesting design guidelines to suppress wideband interference with minimal hardware.

Key Points

To establish analytical insights and quantitative design guidelines that minimize the required number of delay-line taps for broadband adaptive antenna nulling.
Derived an analytical solution for a two-element array using two-tap delay lines per element to characterize the compensation mechanism.
Extended the formulation to N-element planar arrays and evaluated composite performance across nine array configurations varying bandwidth, aperture size, tap spacing, and scan angle.
Analyzed the integration and performance impacts of an Applebaum-Howells adaptive processor for determining delay-line output weights.
Identified optimal tap-spacing criteria that maximize wideband null depth across arbitrary source angles in the antenna field of view.
Quantified the minimum required number of taps per element as a function of fractional bandwidth, maximum aperture dimension, tap spacing, and maximum scan angle.
Demonstrated that adaptive delay-line weighting effectively suppresses wideband interference while preserving directional gain constraints.

Cite This Study

Mayhan et al. (1981) studied this question.

synapsesocial.com/papers/6a881f06a95381ace1bbfc50 https://doi.org/10.1109/tap.1981.1142694

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Implication

Analytical modeling demonstrates optimal tapped delay-line configurations for broadband antenna array nulling, suggesting design guidelines to suppress wideband interference with minimal hardware.

Wide-band adaptive antenna nulling using tapped delay lines

Discussion

Member takes

Implication

Key Points

Cite This Study

Wide-band adaptive antenna nulling using tapped delay lines

Discussion

Member takes

Implication

Key Points

Cite This Study

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