Abstract: This paper presents the design of a microstrip line-fed substrate-integrated waveguide (SIW) ring antenna designed to excite a sixth-order circularly polarized conical radiation pattern.

Abstract: To solve the contradiction between the direction of arrival (DOA) estimation accuracy in the lower frequency band and phase ambiguity in the higher frequency band for an ultra-wideband ...

Furthermore, Blackstone has agreed to a voluntary lock-in for the remaining 6.3% ownership for a period of nine months.

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