editor's blog
Subscribe Now

Towards One Less Antenna?

Right at the beginning of this last year, we took a look at WiSpry; they make a MEMS-based tuning product for dynamically adjusting the antenna matching characteristics dynamically as things change. Things like grabbing the phone in the natural (but wrong) place. Not that that would ever happen; I’m sure such phones would always “just work.” But… just in case…

Such capabilities sound great in theory, but WiSpry recently ran an actual test – one that can’t be accused of being a best-case idealized one either. They purchased two phones and literally opened one of them up, replacing the stock tuner with theirs, and then compared the bandwidths between the two phones. The stock phone had 25 MHz bandwidth; the modified phone? 150 MHz.

At issue specifically here is LTE data, which requires a separate diversity antenna in the phone. It’s one of about six antennas (four for cellular, one for GPS, and one for WiFi/Bluetooth). Something there’s not a lot of room for. If the bandwidth for the voice antenna, for instance, can be broadened to make it effective at data as well, then one antenna can be removed.

The lower frequency bands are the most troublesome because they require larger antennas. According to WiSpry, prior to LTE, the total bandwidth range was from 824 to 2170 MHz; their product can extend the lower range down to 700 MHz. LTE’s top end goes to 2700 MHz; their next product will support the entire 700-2700 MHz range.

You can see more on their release

Leave a Reply

featured blogs
Oct 27, 2021
ASIC hardware verification is a complex process; explore key challenges and bug hunting, debug, and SoC verification solutions to satisfy sign-off requirements. The post The Quest for Bugs: The Key Challenges appeared first on From Silicon To Software....
Oct 27, 2021
Cadence was recently ranked #7 on Newsweek's Most Loved Workplaces list for 2021 and #17 on Fortune's World's Best Workplaces list. Cadence received top recognition among thousands of other companies... [[ Click on the title to access the full blog on the Cadence Community s...
Oct 20, 2021
I've seen a lot of things in my time, but I don't think I was ready to see a robot that can walk, fly, ride a skateboard, and balance on a slackline....
Oct 4, 2021
The latest version of Intel® Quartus® Prime software version 21.3 has been released. It introduces many new intuitive features and improvements that make it easier to design with Intel® FPGAs, including the new Intel® Agilex'„¢ FPGAs. These new features and improvements...

featured video

Simplify building automation designs with MSP430

Sponsored by Texas Instruments

Smart building automation requires simple, flexible designs. With integrated, high-performance signal chain, MSP430 MCUs can enable high-accuracy motion detection, sensing and motor control to take performance and efficiency to the next level.

Click here for more information

featured paper

Is your application protected from glitches?

Sponsored by Maxim Integrated (now part of Analog Devices)

Medical, industrial, and consumer devices require reliable operation, free from startup glitches. With the glitch-free operation available in the MAX16162, Maxim’s nanoPower supervisor IC, designers now have the means to prevent system startup glitches.

Click to read more

featured chalk talk

LED Lighting Solutions

Sponsored by Mouser Electronics and Amphenol ICC

LED lighting is revolutionizing lighting design. Engineers now need to consider a host of issues such as power consumption, spectrum, form factor, and reliability. In this episode of Chalk Talk, Amelia Dalton chats with Peter Swift from Amphenol ICC about the latest in LED lighting technology, and solutions for indoor and outdoor applications.

Click here for more about Amphenol Commercial Lighting Solutions ICC