Ny Teknik, a Swedish technical magazine says that the problematic wireless broadband connectivity for some of the new iPhones is most likely resulting from a hardware problem introduced during mass production.

The magazine claims to have obtained a report on tests that were conducted by experts showing some handsets’ sensitivity to third-generation (3G) network signals is below the level specified in the 3G standard. The report also said that the most likely cause of the problems is defective adjustments between the antenna and an amplifier that captures very weak signals from the antenna. This could lead to poor 3G connectivity and slower data speeds.

3G networks offer faster web surfing on cellphone browsers and makes video-calling feasible. Phones that access 3G networks must meet certain engineering and technical specifications. These specifications are set and maintained by Geneva-based organization, International Telecommunication Union.

Some users from US,Canada,Japan, and Britain said they found that the iPhone had connectivity problems in locations where 3G phones from other manufacturers did not.

You may try synchronizing your iPhone 3G with Apple’s iTunes programs to take advantage of improvement that may come via updated software. Apple has just recently released a new software update to the iPhone 3G. Glitches appear on iPhone,Apple releases updates