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
May 27, 2020
Could life evolve on ice worlds, ocean worlds, ocean worlds covered in ice, halo worlds that are tidally locked with their sun, and rogue worlds without a sun? If so, what sort of life might it be?...
May 26, 2020
I get pleasure from good quality things. Quality is a vague term, but, to me, it is some combination of good design for usability, functionality and aesthetics, along with reliability and durability. Some of these factors can be assessed very quickly; others take time. For ex...
May 26, 2020
#robotcombat #combatrobots #robotwars #WeWantSeason5 #WeGotSeason5 These are some of the most popular hashtags used by a growing number of global BattleBots enthusiasts. Teams from all backgrounds design, build and test robots of all sizes for one purpose in mind: Robot Comba...
May 22, 2020
[From the last episode: We looked at the complexities of cache in a multicore processor.] OK, time for a breather and for some review. We'€™ve taken quite the tour of computing, both in an IoT device (or even a laptop) and in the cloud. Here are some basic things we looked ...

Featured Video

DesignWare 112G Ethernet PHY IP JTOL & ITOL Performance

Sponsored by Synopsys

This video shows the Synopsys 112G Ethernet PHY IP in TSMC’s N7 process passing the jitter and interference tolerance test at the IEEE-specified bit error rate (BER). The IP with leading power, performance, and area is available in a range of FinFET processes for high-performance computing SoCs.

Click here for more information

Featured Paper

Noitom Limited Customer Testimonial: Redefining Motion Capture

Sponsored by Maxim Integrated

Noitom's team of visionaries are dedicated to redefining the motion capture paradigm. Founded by mechanics, software, robotics and sensor engineering experts, it focuses its R&D on mapping the human body, its movements, and its interaction with the environment. Read this customer testimonial and find out why Noitom's CTO says the caompany's "trust in the Maxim brand is paying off."

Click here to download the whitepaper