Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 2
kr6x
User Rank
Author
re: New iPhone antenna has same 'death grip'
kr6x   2/8/2011 10:02:42 PM
NO RATINGS
No, I'm going to have to chime in with my agreement with what Frank says. The original article is misleading if diversity reception corrects symptoms, even if the Verizon phone has one antenna with the same "gap" as the AT&T phone. Even the UBM lab report you reference recognizes the value of diversity reception, but you had to have a "headline".

Luis Sanchez
User Rank
Author
re: New iPhone antenna has same 'death grip'
Luis Sanchez   2/8/2011 9:59:16 PM
NO RATINGS
Well, who's going to test? TechInsights? I'd appreciate if you provide a link once testing data is available. Which would be better? CDMA or GSM? Which will have the least amount of dropped calls? Actually, I haven't seen data to objectively know the antenna performance of the first At&t apple iPhone 4. Will there be any for this new CDMA breed? And after all... wasn't the problem solved with the firmware upgrade that Mr. Jobs announced :-)

mcgrathdylan
User Rank
Author
re: New iPhone antenna has same 'death grip'
mcgrathdylan   2/8/2011 9:31:08 PM
NO RATINGS
Thanks for the comments and feedback as always. In the opinion of the analysts at UBM TechInsights who performed the teardown, the antennae design isnít innovative or revolutionary, but they acknowledge that it is an improvement over the previous design. They say that both the AT&T and Verizon models still use two antennae, but because the Verizon is a CDMA version it gives them the ability to incorporate a Diversity/A-GPS style antenna. As for the "death grip," that's just a colloquialism to refer to that particular area that many analysts thought was responsible for the dropped calls. But the UBM TechInsights analysts say they can speculate with some certainty that regardless of the "death grip," the choice of the Diversity Rx in CDMA has shown to improve signal integrity. That said, I think that the UBM TechInsights analysts and I would agree with Robotics Developer, that we won't know with certainty that the new design improves on the performance of the former without some real testing.

Robotics Developer
User Rank
Author
re: New iPhone antenna has same 'death grip'
Robotics Developer   2/8/2011 8:52:36 PM
NO RATINGS
I would have preferred to see test results from the breakdown rather than speculation. It may or may not work, it may be fine, not knowing what caused the "death grip" issue with the old unit it is hard to tell what "fix" was needed. I will wait until some real testing occurs and then decide.

old account Frank Eory
User Rank
Author
re: New iPhone antenna has same 'death grip'
old account Frank Eory   2/8/2011 7:44:55 PM
NO RATINGS
Sorry Dylan, but I find this story to be very contradictory and misleading. The redesigned antenna is "not dramatically different" than on the AT&T version? In the Verizon version, it is actually two antennas with spatial diversity reception vs. only one antenna on the AT&T version. IHS iSuppli is referring to this as "an entirely new antenna design." I guess it all depends on one's definition of the word "dramatically." You also state that there have been no reports yet of the kind of reception problems that plagued the AT&T version, yet you state that the "death grip" location of the antenna(s) hasn't changed. By that logic, wherever the antenna happens to be located -- on this or any other phone -- is now going to be referred to as the "death grip" location? It's quite interesting to see this headline -- "New iPhone antenna has same 'death grip'" and another headline titled "Apple redesigns antenna for VZW iPhone" within the same morning news cycle.

<<   <   Page 2 / 2


Radio
NEXT UPCOMING BROADCAST
In conjunction with unveiling of EE Timesí Silicon 60 list, journalist & Silicon 60 researcher Peter Clarke hosts a conversation on startups in the electronics industry. One of Silicon Valley's great contributions to the world has been the demonstration of how the application of entrepreneurship and venture capital to electronics and semiconductor hardware can create wealth with developments in semiconductors, displays, design automation, MEMS and across the breadth of hardware developments. But in recent years concerns have been raised that traditional venture capital has turned its back on hardware-related startups in favor of software and Internet applications and services. Panelists from incubators join Peter Clarke in debate.
Flash Poll
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Special Video Section
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LTģ3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in todayís and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptopís 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.