Marketing

Marketing information and downloads including company video, company presentation in Powerpoint format, and company capabilities brochure amongst many others

Company Video — by julianr — last modified Fri 08 December 2006 15:56

Short introductory video describing the company, its skills and specialties & ethos. In addition, our new Model 300 All Weather Antenna Positioner is shown operating.

Millimetric Wave Radars in Defence Presentation - PPT File — by julianr — last modified Thu 07 December 2006 16:14

Presentation made by Dr Duncan Wynn, Q-par Angus at the SMI 2006 Radar Conference on 'The role of active millimetre wave radar in defence surveillance'. This file is presented as a Powerpoint format file. Presentation also available as a PDF file.

Millimetric Wave Radars in Defence Surveillance Presentation PDF — by julianr — last modified Thu 07 December 2006 16:08

Presentation made by Dr Duncan Wynn, Q-par Angus at the SMI 2006 Radar Conference on 'The role of active millimetre wave radar in defence surveillance'. This file is presented as a PDF file. Presentation also available as a PPT Powerpoint file.

High Resolution Radar Technology PPT — by duncanw — last modified Tue 05 September 2006 12:31

This presentation in Powerpoint format demonstrates the technology behind our new radar for Environmental Applications.

High Resolution Radar Technology PDF — by duncanw — last modified Tue 05 September 2006 12:31

This presentation in PDF format demonstrates the technology and application to major Environment Issues

Q-par Company Presentation — by julianr — last modified Tue 30 October 2007 16:42

This presentation gives an overview of our history, ethos, microwave engineering specialisation and microwave antennas and antenna positioner expertise.

Company Presentation — by julianr — last modified Thu 07 December 2006 13:59

This company presentation gives an overview of our history, company ethos, capabilities and specialisations. This file is presented in PDF Format.

Wideband Antennas - an Historical Perspective — by Dr Richard Holliday — last modified Tue 30 October 2007 16:40

Presented at IEE Symposium in September 2005, this paper looks at the evolution of wideband antennas and uses modern day techniques to examine performance of early antennas. There are two files, the article and poster presentation. This is the main article.

Wideband Antennas - an Historical Perspective, Poster Presentation — by Dr Richard Holliday — last modified Tue 11 July 2006 11:58

Presented at IEE Symposium in September 2005, this paper looks at the evolution of wideband antennas and uses modern day techniques to examine performance of early antennas. There are two files, the article and poster presentation. This is the poster presentation.

UWB Passive Microwave Imagery from Static Discharge Effects — by Andrew Mackay — last modified Tue 30 October 2007 16:38

Paper published in the IEE Electronics Letters, Vol 40, No. 18, 2nd Sept. 2004 by Dr Andrew Mackay of Q-par Angus Ltd.

A Lightweight, Ultra Wideband Polarimetric W-band Radar - Paper Presented at the European Microwave Conference 2006 — by duncanw — last modified Tue 30 October 2007 16:38

Abstract - A lightweight, ultra wideband (UWB), polarimetric millimetre wave 94 GHz radar with high resolution is described for environmental and other short range applications. UWB and random signal W-band radar technologies are combined with polarimetric and super-resolution processing techniques to provide a compact remote sensing capability that is manportable. An all-weather capability is provided for accurate and high resolution measurement of the physical size, relative distance, bearing, altitude, direction, velocity and classification of stationary and moving objects at ranges of less than 10 km. Attributed information relating to the sensed environment such as local surface features, water depth, terrain topology and object classification is derived from remote millimetre wave radar measurements including polarisation.

A Lightweight, Ultra-Wideband Polarimetric W-band Radar - Presentation — by duncanw — last modified Mon 18 September 2006 15:46

A lightweight, ultra-wideband polarimetric W-band radar with high resolution for environmental applications. This presentation was made at the EuRAD Conference in Manchester on September 14th 2006 as part of the European Microwave Week 2006. The Presentation is available as a MS Powerpoint File. The paper that the presentation is based on, is also available.

The Theory and Design of Provably Optimal Bandwidth Radar Absorbent Materials (RAM) using Dispersive structures and/or Frequency Selective Surfaces (FSS) — by Andrew Mackay — last modified Tue 30 October 2007 16:37

Published in the Proceedings of the 2007 International Conference on Electromagnetics in Advanced Applications (ICEAA07), September 2007. This article concerns the design of radar absorbent materials which are theoretically optimal in the sense of maximum reflection loss for a material of given bandwidth and thickness. It covers the theory, definition of benchmarks and design methodology.

Bandwidth performance limits for finite antennas — by Andrew Mackay — last modified Tue 30 October 2007 16:26

Article submitted to IET Microwaves, Antennas and Propagation. "Maximum bandwidth performance bounds are given for any finite antenna, either in free space or above a perfectly conducting ground plane. The theory is valid for any class of antenna, e.g. for patch antennas, dielectric resonator antennas, etc. whose radiating currents can be confined to the Chu sphere or hemisphere of radius a. An example is given using the equivalentcircuit of a perfect loop antenna and a full-wave numerical analysis of a realisable loop antenna."

Dispersion requirements of low-loss negative refractive indexmaterials and their impossibility in the homogeneous limit — by Andrew Mackay — last modified Wed 07 November 2007 10:14

Article submitted to IET Microwaves, Antennas and Propagation: "A necessary dispersion requirement is given for the effective relative permeability, $\mu_r(\omega)$ and permittivity $\epsilon_r(\omega)$ as a function of frequency for zero-loss negative refractive index materials, if they exist at some dimensional scale $D$. Using asymptotic requirements at zero frequency and Foster's reactance theorem, it is shown that zero loss can only be achieved if the material exhibits finite band-gaps separating regions of positive and/or negative refractive indices. In degenerate cases the band gaps shrink to zero but low-loss propagation remains impossible in the neighbourhood of the critical frequencies.It is also shown that low-loss negative refractive index materials are impossible in the limit $D\rightarrow 0$, if finite energy density is to be maintained."

Company Profile — by julianr — last modified Thu 01 November 2007 11:27

A short 8 page company profile of Q-par Angus available as a PDF file for download. The profile includes details of our products, customer base, Microwave, Mechanical, Electronics and Software Design capabilities. Lastly it profiles our Research and Consultancy activities and Quality Assurance commitment.