Advanced Ultra-wideband (UWB) devices for wireless communications and radar

Lead Research Organisation: Heriot-Watt University
Department Name: Sch of Engineering and Physical Science


Ultra wideband (UWB) technology is one of the latest radio-frequency (RF) device technologies to hit the news. The new technology is very promising for future wireless communications and imaging radar applications where high-capacity multiple access and ultra high speed transmission up to several hundreds of Mbps can be implemented. UWB has the potential to make a substantial contribution to the UK economy. However, with the expansion of wireless communications and services, the available RF spectrum is growing scarce. The problem of interference with other services is one which must be solved if the great potential of UWB is to be fully exploited. Filtering technologies are key to controlling the spectrum of RF signals and tackling interference issues. This proposal aims at developing advanced UWB filters for future UWB wireless communications and radar systems.System-on-package (SOP) is a very attractive approach for the development of future UWB RF front-ends, where a high-performance module can be implemented while simultaneously achieving cost and size reduction. To this end, the proposed research will deploy liquid crystal polymer (LCP) that has recently emerged as a new microwave substrate and package material. It has a low loss over a very wide frequency range, near hermetic nature, multilayer capability, and is low cost, and so is ideal for SOP integration. In particular, such a low-cost solution is vital if UWB products are to succeed in the personal consumer market.With this new material a great deal of effort is required on the design and implementation. The proposed research will investigate new design philosophies. Innovative UWB filtering structures that exploit multilayer capability of LCP will be implemented in the light of enabling manufacturing technologies such as laser machining. The reconfigurable UWB filtering sub-system integrating both active and passive components in a single LCP package will be developed.


10 25 50
publication icon
Hao Z (2010) Ultrawideband Filter Technologies in IEEE Microwave Magazine

publication icon
Zhang-Cheng Hao (2009) Ultra-Wideband Bandpass Filter With Multiple Notch Bands Using Nonuniform Periodical Slotted Ground Structure in IEEE Transactions on Microwave Theory and Techniques

publication icon
Zhang-Cheng Hao (2008) Ultra-Wideband Bandpass Filter Using Multilayer Liquid-Crystal-Polymer Technology in IEEE Transactions on Microwave Theory and Techniques

Description Miniature, low weight and low-cost UWB filters have been developed based on multi-layer LCP circuit technology
Exploitation Route The findings would be useful for both industrial and academic sectors working on UWB technology
Sectors Aerospace, Defence and Marine,Digital/Communication/Information Technologies (including Software),Education

Description The findings have been exploited in an EDA project (SIMCLAIRS) via Selex UK
Sector Aerospace, Defence and Marine
Description Selex-Galileo 
Organisation Selex ES
Department SELEX Galileo Ltd
Country United Kingdom 
Sector Private 
Start Year 2007