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Wireless
Start or enter a discussion geared around wireless and RF design & development What interesting news and productss come What new technologies and trends release What problems and opinion you have Let us discuss freely here.

Owned by: Jamie Furness wendydu Christy Zurcher

Tags: wireless, zigbee, bluetooth, wimax, communication, rf, 3g, 4g, radio, wi-fi, rfid, gps, antenna, 802.15.4, cellphone, 802.11

Group Type: Open

Created: Oct 22, 2008

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Society’s expectation of technology has changed. Do you  remember  when a black and white television was the best picture  available? Do  you remember when a Commodore 64 was the best home  computer? Do you  remember the days when a dial-up connection was the  only way to access  the internet?

 

Every  product above was the most basic model of some objects we use   regularly today. HDTV, Laptop, and especially Wi-Fi are   at the next level of innovation. We have learnt from   the mistakes and accomplishments of the past and we use our developed   knowledge to make products better. We have come a long way since “the   olden days.” Is that not the point though? We develop, we learn, and we   adapt to what people need.

 

Wi-Fi has become more attractive over that past 5  years thanks to  some companies like Broadcom, Marvel Semiconductors,  and Athos. However,  recently, more companies are helping Wi-Fi’s rise  to power including  Redpine, Embedded Works, Sagrad, and Rabbit  semiconductors. All of these  companies have one thing in common. Innovation. The  companies above, including some that are not mentioned, have  helped in  the development and expansion of Wi-Fi.

 

From the end  user’s standpoint, it is not hard to see why Wi-Fi is  doing so well  though…

  • Wi-Fi offers reduced costs of network deployment and  expansion,
  • Wi-Fi allows for backwards compatibility,
  • Wi-Fi  operates on a set of standards (meaning any standard Wi-Fi  device will  work anywhere in the world),
  • Wi-Fi is suitable for  latency-sensitive applications

 

Cost savings, backwards  compatibility, standards, and  latency-sensitive applications are what  the end user wants BUT what are  you going to do about it? Well, it is  simple, for your next project  consider using Wi-Fi instead of a wired  connection or custom radio  design.

 

Case in point, find a way to utilize  Wi-Fi in your next project, the  demand is there, and the time is now.   Step up to the next level  of innovation. Remember  that radios, including Wi-Fi radios,  need a number of special  considerations when included in a design. Check  out our others blogs on  Radio design for expertise advice.

 

 

 

Ashton Byrne

www.pinterec.ca.

317 Views 0 Comments Permalink Tags: rf_design_engineering, rf_engineering_consultants, technology_management_project, microwave_engineer, wireless_lab, wifi_enabled, specification_design, rf_design_engineer, consulting_engineering_services

Digital GSM Repeater in Wireless

Posted by Ashwani Kumar Feb 3, 2010

Hi,

 

In Digital GSM900/1800 receiver having single IF stage (70 MHz), typically what are the antialias and image reject filters have been used?

 

References of any antialias and image filters part number for GSM 900/1800 would be appreciated.

 

 

Regards

Ashwani

395 Views 0 Comments Permalink

My name is Hazel Doughty. I'm the Sales & Marketing Manager of a Bluetooth module and adapter manufacturer called LM Technologies Ltd, based in the UK. I would like to start by introducing LM and would be happy to answer any and all questions you may have.

 

LM Technologies Ltd was formed in 2004 and began supplying Bluetooth USB adapters to the telecoms industry Europe wide. Having established strong relationships with Europe’s top two distributors LM Technologies Ltd started developing and building its own range of accessories for the telecoms market.

 

In 2008 and after four successful years, LM Technologies Ltd secured investment to grow research and development and design a range of advanced Bluetooth modules. Coupled with LM Technologies Ltd own range of adapters these modules are sold into industrial, commercial and telecoms markets worldwide. In parallel LM Technologies Ltd created two product divisions, each independently focused on range specific target markets.

 

LM Technologies Ltd latest program of design and development coupled with a traditional and solid foundation of supplying quality products at competitive prices saw continued expansion and strong growth in 2009 while the global financial crisis hit electronics manufacturers everywhere and without prejudice. LM Technologies Ltd believe this is due to the customer’s willingness to be open minded about their products rather than stick with previous suppliers who often over value their goods.

 

STAR (printers), EPSON, CASIO, SHARP are global businesses that now actively promote LM Technologies Ltd ‘unique’ RS232 Serial adapter that can be used as a wireless printer adapter unlike competitors products that do not handle the handshaking operations required.  Testament indeed to LM Technologies Ltd innovative developers and the high quality of product required to pass exhaustive and thorough quality controls required by manufacturers worldwide.

 

LM Technologies Ltd is a more compact Bluetooth manufacturer than many of its competitors, a distinct advantage. This allows them complete flexibility to design customer specific bespoke solutions from the ground up, in a timely manner, and with the highest level of service and support you would expect.

 

In 2009 LM Technologies Ltd launched eight new products. In 2010 this trend is set to continue with further innovations targeted at a fast growing range of new and emerging technologies and applications.  LM Technologies Ltd has already contracted orders that will see profits and turnover rise steadily in 2010 and beyond. With such long lead times generally experienced within electronics manufacturing their philosophy has always been to offer free support from inception to completion, design concept to mass production. LM Technologies Ltd support customers own product growth by offering a range of products that lead to wireless adoption and a clear integration path.  This path starts with bolt on wireless adapters like the LM048 and LM058, and as volume increases the LM400 12pin UART plug and play module for easy integration onto a PCB. This enables customers to produce one PCB, choice dependent on their volumes, and to Bluetooth enable their product as per demand. Once volumes stabilise we transfer customers to surface mount modules for high volume production.

 

Serial Wireless Adapter - LM048 > 12 Pin Plug & Play Module - LM400 > Surface Mount Module (High Volume) - LM071

 

Q. Why Choose LM Technologies Ltd?

 

A. Quality: LM Technologies Ltd has sold over 1 Million Bluetooth products with returns rates due to faulty build quality standing at 0.056% (data recorded on 01/05/2009).

 

A. Research and Development: LM Technologies Ltd design and engineer their own concepts, hardware, firmware and software. At volumes above 5000 units LM Technologies Ltd has designed and supported brand new products, and written specific firmware and software for customers free of charge as a way to quickly develop and cement future long term client relationships.

 

A. Good Business: Currently selling in 33 countries around the world to a client list which includes a broad range of globally well known and respected brands and one man bands, LM Technologies Ltd customers will always be offered the highest levels of service and support unique to their requirements.

 

A. Competitive Pricing: LM Technologies Ltd consistently deliver high quality products manufactured at competitive prices aligned with cheaper brands, yet deliver top of the range features and first class build.

 

Hazel Doughty

Sales & Marketing Manager

 

LM Technologies Ltd

www.lm-technologies.com

Tel: + 44 (0) 207 428 2647

Email: hazel@lm-technologies.com

395 Views 0 Comments Permalink

From Microwave Engineering

By Jean-Pierre Joosting

Microwave Engineering

Octorber 21,2009

Cambridge, UK — Cambridge Consultants has unveiled VenaHub, a data collection and aggregation system that promises to simplify personal health management in a connected health environment. VenaHub employs a small pocket device to capture data from a user's ecosystem of wireless medical devices, which it then integrates into a customisable online health information portal.

 

Anticipating growing consumer demand for low-cost home health management devices, this launch addresses the need for a simple, consumer friendly and cost effective means to enable proactive self-management of chronic diseases. The system builds on the momentum of a Vena-enabled inhaler prototype launched by Cambridge Consultants in spring 2009, and the deployment of Vena-enabled weight-scales and blood pressure monitors by A&D Medical in August 2009.

 

"Current solutions in the telehealth space are expensive, which means none of the parties involved want to pay for them, whether they are an insurer, hospital or patient," said Mike Dunkley, Vice President at Cambridge Consultants. "But the novel, compact, and portable VenaHub is cheap and can plug into the USB port of any PC. Critically, it can also collect data from devices even when it's not plugged into a computer. This technology could not only disrupt the current medical home market, but could overcome the reimbursement barrier that has prevented connected health solutions from being widely deployed."

 

The vision for VenaHub's web interface is much like an app-enabled phone or PDA where users would be able to customise different applications to suit their own needs and conditions. These applications could be created by the device makers themselves, or by third parties who develop meaningful and engaging applications using patient-specific or helpful corollary medical or wellness information.

 

For example, an asthmatic patient could tailor their portal to see various types of information — charts of their recent inhaler use, reminders for refilling prescriptions or doctor's appointments, lung function data via a peak flow chart — all juxtaposed against the coming week's pollen forecast.

 

The wireless technology at the core of VenaHub is based on Cambridge Consultants' Vena wireless healthcare device platform, which implements the standards selected by the Continua Health Alliance to empower patients to manage health and wellness anytime, anywhere. It embeds the Bluetooth™ Health Device Profile (HDP) optimised for the secure transport of medical data, onto a single chip at an affordable price.

 

Vena also offers the IEEE 11073 standards for compatible exchange of information between health devices. VenaHub demonstrates how simple wireless technologies can be deployed to provide consumers with a tool they can use effectively at home with minimal effort and expense to manage chronic conditions like diabetes or Congestive Heart Failure as well as interact with their healthcare network. VenaHub can also be used for fitness and wellness applications.

460 Views 1 Comments Permalink Tags: wireless, medical, health
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