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Shared-aperture dual-band spoof surface plasmon polariton leaky-wave radiator
In this paper, a shared-aperture dual-band leaky-wave radiator based on spoof surface plasmon polaritons (SSPPs) and substrate-integrated waveguide (SIW) is presented. The SSPP structure, consisting of the periodic parasitic stubs, acts as a periodic leaky-wave antenna (PLWA) operating in the lower frequency band, while the central conductor of SSPP plays the role of an SIW-based leaky-wave antenna (LWA) suitable for higher frequency operation.
A Novel Weighted Block Sparse DOA Estimation Based on Signal Subspace under Unknown Mutual Coupling
1. Introduction DOA estimation is widely used in radar [1], communication [2], sonar [3], and other fields [4,5,6], which is one of the most important topics in array signal processing [7]. In the past decades, there has been rapid progress, such as the multiple signal classification (MUSIC) algorithm [8], the estimation of signal parameters via the rotational invariant technique (ESPRIT) algorithm [9], the maximum likelihood algorithm (ML) [10], and so on.
Dual-mode microstrip leaky-wave antenna for pattern diversity application
Abstract We present a dual-mode microstrip leaky-wave antenna (LWA), which is characterized by radiating a single beam or dual symmetrical beam. Different from the conventional single-mode microstrip LWA, the designed antenna is based on the odd mode and the even mode of the employed shorted microstrip line. The working principle of these two modes is fully studied by analyzing the electric-field distributions and their dispersion curves.
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