Concept

Active electronically scanned array

Related publications (96)

Planar Antennas for Ka-Band Space Applications

This dissertation aims to explore the design trade-offs and technological limitations of planar antenna elements and arrays for Ka-band space applications. The motivation for this research stems from the growing importance of wideband millimetre wave radio ...

EPFL2013

Shaped Beam Synthesis of Arrays via Sequential Convex Optimizations

Juan Ramon Mosig, Anja Skrivervik, Benjamin Fuchs

A method to synthesize shaped beams with antenna arrays is presented. Specifically, the element excitations are determined such that the array radiates a power pattern that approximates a desired shape. To efficiently solve this problem, an iterative algor ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Extended Polar Codes Perform Better in Terms of Compound Rate and Scaling Behavior

Seyed Hamed Hassani

Polar codes provably achieve the capacity of a wide array of channels under successive decoding. However, in terms of some practical aspects, these codes do not perform optimally and need further improvement. In this paper, we consider two such aspects: un ...

Ieee2013

Nanostripe of subwavelength width as a switchable semitransparent mirror for spin waves in a magnonic crystal

Dirk Grundler

Spin wave transmission experiments are performed on a one-dimensional magnonic crystal (MC) where an injection pad for domain walls reverses the magnetization M of selected nanostripes independently from the otherwise saturated MC. The MC consists of a per ...

2013

NATALIA: a satcom phased array in Ku-band

Stefano Vaccaro, Roberto Torres Sánchez

This article presents the prototype of an electronically steerable receive-only array antenna realised within the ESA-project NATALIA. This project is funded under contract number 18612/04/NL/US. The antenna is conceived for the reception of mobile satelli ...

2012

Reconfigurable parasitic antennas for compact mobile terminals in multiuser wireless systems

Julien Perruisseau-Carrier

This article considers the exploitation of parasitic antenna arrays in multi-user (MU) wireless communication systems by using their adaptive beamforming capabilities in order to improve the average system throughput. The use of parasitic arrays and especi ...

Hindawi Publishing Corporation2012

System design of a 24 GHz phased-array front-end for low-power applications

Pierre-André Farine, Cyril Botteron, Gabriele Tasselli, Ban Wang

This paper deals with the design of a 4-channel phased-array receiver Front-End (FE) architecture working at 24 GHz. Targeting low power applications such as radar sensors and medium bit-rate transceivers, a local oscillator shifting architecture is propos ...

2012

Polar Codes: Robustness of the Successive Cancellation Decoder with Respect to Quantization

Rüdiger Urbanke, Seyed Hamed Hassani

Polar codes provably achieve the capacity of a wide array of channels under successive decoding. This assumes infinite precision arithmetic. Given the successive nature of the decoding algorithm, one might worry about the sensitivity of the performance to ...

Ieee2012

Progress Towards a Miniaturized Electrospray Thruster for Propulsion of Small Spacecraft

Herbert Shea, Caglar Ataman, Simon Dandavino, Subha Chakraborty

Miniaturized electrical thrusters based on electrospray (or colloid) emitters could rev- olutionize the spacecraft industry by providing efficient propulsion capabilities to micro and nano satellites (1-100 kg). We report on our recent advances in the deve ...

2012

Polar Codes: Robustness of the Successive Cancellation Decoder with Respect to Quantization

Rüdiger Urbanke, Seyed Hamed Hassani

2012

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