There's been a lot of buzz these past couple days about the iPhone's FCC filing and what it says -- or rather, what it doesn't say -- about the handset's internals. The fear basically revolves around ...

Measuring 4 x 4 x 0.75 mm, the LMX2604 triple-band GSM VCO IC is offered as the smallest and only standalone such device available, with a footprint 80% smaller than alternative solutions such as ...

Several MacRumors readers have forwarded us a "member only" email from Ideal-case.com claiming to show the antenna band for what would seem to be the "iPhone 4S" based on the current iPhone 4 design.

Apple’s new iPhone 5 will be available in separate GSM and CDMA models for various carriers across the world. Apple’s new iPhone 5 will be available in separate GSM and CDMA models for various ...

Understanding the difference between Code Division Multiple Access (CDMA) and Global System for Mobiles (GSM) — two legacy radio telecommunications standards — is becoming less and less critical for ...

Today's GSM handsets use high-power amplifiers to achieve maximum communication distance to the base station. These amplifiers consume large currents bursting at relatively low frequency rates which ...