An origami-based Tightly Coupled Dipole Array (TCDA) is proposed for small satellite applications. The array formed by a two-layered structure using rigid and flexible substrates to enable accordion-like folding. TCDA operates across 0.4-2.4 GHz with VSWR < 3 at broadside 0.6-2.4 when scanning down 45∘ in the E-, D-, H-plane. 8 × prototype was fabricated Kapton Polyimide FR4 tested verify bandw...

Array scanning method (ASM) is employed to study the input impedance and radiation pattern of a twodimensional periodic leaky-wave antenna (LWA). The antenna consists of a narrow horizontal strip dipole of arbitrary length underneath a two-dimensional (2D) periodic screen of metallic patches, which acts as a partially reflective surface (PRS), and backed by a ground plane. First, the Green’s fu...

In this paper we present the latest developments in the design, fabrication and application of single and arrays of biomimetic hair flow-sensors towards high-resolution air-flow imaging. Redesigning the electrode system of the hair sensor (using SOI wafer technology) has led to improve the detection limit down to 1 mm/s air-flow amplitude using 3 kHz measurement bandwidth. SOI technology facili...

The recoil of atoms in arrays due to the emission or absorption photons is studied for subwavelength interatomic spacing. array interact with each other through collective dipole-dipole interactions and incident laser field low-intensity limit. Shining uniform light on gives rise patterns excitation array. They arise interference different eigenmodes excitation. relation between decay dynamics ...

The concept of connected (or coupled) dipoles in a linear array, which improves wideband performance, is examined. A long wire with multiple feeds is the model, using rigorous moment method analysis. Edge waves of current appear not to be attenuated; around half-wave dipole length the current peaks are one wavelength apart, with deep nulls. For dipole lengths around quarter-wave the current pea...