Simulation, design, development and test of antennas for wireless sensor network systems

Abstract

If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. AbstractPurpose -This paper aims to describe the simulation, design, development and characterisation of antennas for wireless sensor networks operating in a variety of environments, including an under water submarine application and more usual "open air" deployments. Design/methodology/approach -The experimental test methodology, fixtures, conditions and results used to characterize the performance of these antennas (both state of the art commercially available and those developed in-house) are presented. Findings -The underwater test results show a near omni-directional pattern about the three principal axes, thus showing that a spherical field has been achieved for localisation purposes (with a certain loss of resolution). Originality/value -The paper focuses on the development of a new antenna scheme to enable under water communications between robotic agents.

Improving the efficiency of verification and validation

“…Modularisation shifts testing to earlier phases, when testing is considered in a scope of the entire product, and allows product variants and a degree of flexibility. Simulation on its behalf allows anticipating possible issues early (O'Flynn et al, 2007). Additionally, the choice of materials, techniques, components, and architecture are the keys for designing a desired product in electronics.…”

The High Frequency Electrical Properties of Interconnects on a Flexible Polyimide Substrate Including the Effects of Humidity

“…The reliability 56 of electrical simulations for interconnects fabricated from 57 these materials and subject to electrical property changes on 58 absorbing moisture is therefore open to question. An example 59 of this is to be found in [3], where a flexible antenna for 60 outdoor use showed significant change in electrical properties 61 on absorption of moisture. There is also a growing use, for 62 cost saving, of materials that were not necessarily originally 63 intended for use at higher frequencies.…”