Steven Gao

TL;DR: In this article, the authors present a comprehensive insight into the design techniques for different types of circularly polarized antenna elements and arrays, including the basic principles, design techniques and characteristics of various types of CP antennas, such as CP patch antennas, CP helix antennas, quadrifilar helix antenna, printed slots, spiral antennas, monopoles, dielectric resonator antennas, etc.

TL;DR: In this paper, an expression for the bit error rate of a multiple subcarrier intensity-modulated atmospheric optical communication system employing spatial diversity is derived, where spatial diversity was used to mitigate scintillation caused by atmospheric turbulence, which was assumed to obey log-normal distribution.

TL;DR: In this article, a dual-band dual-polarized array antenna with low frequency ratio and integrated filtering characteristics is proposed, which employs a dualmode stub-loaded resonator to feed and tune with two patches, resulting in the reduction of the feed networks and the input ports.

TL;DR: In this article, a multimode filtering antenna, which is realized by integrating a multi-modal resonator and an antenna, has been applied to the design of dual-polarized antenna arrays for achieving a compact size and high performance in terms of broad bandwidth, high-frequency selectivity and out-of-band rejection.

TL;DR: An overview of antenna technologies for applications in modern small satellites is given and specific antennas developed for modern small-satellite applications are explained and discussed.