Ioan E. Lager

TL;DR: In this paper, a deterministic procedure to design a nonperiodic planar array radiating a rotationally symmetric pencil beam pattern with an adjustable sidelobe level is proposed.

TL;DR: A consistent strategy for the design of finite array antennas consisting of differently sized radiating elements is discussed, and sparse subarrays, operating at adjacent frequency ranges, are interleaved on a common (shared) aperture.

TL;DR: An effective and robust strategy for concurrently designing the transmit and receive antennas of a frequency-modulated, continuos-wave radar is discussed and controllable sub-array radiation patterns and two-way side-lobe levels below - 30 dB, that are also stable over a wide frequency range.

TL;DR: The design aspects concerning the sparse array antennas are discussed, and the capabilities of sparse architectures are evaluated by comparison with uniform arrays for a similar level of performance.

TL;DR: A novel time-domain approach to the derivation of the pulsed electromagnetic field multiport antenna system reciprocity theorem is presented, which interrelates the field and system properties in two states: the transmitting state and the receiving state.