iPhone 4S Includes Significant Antenna Upgrades

Apple has built significant antenna upgrades into the iPhone 4S, saying in the press release announcing the phone that it is the first phone to intelligently switch between two antennas to send and receive. We spoke to Spencer Webb, owner of AntennaSys, about the antenna history of the iPhones. He wrote extensively about the AntennaGate issues with the original iPhone 4 last year.

"With the iPhone 4," Webb explained, around the steel band "we had one cell antenna at the bottom. On the top, we had another antenna for GPS and Wi-Fi." This turned into Antennagate.

0b3932e6 d89b 486d b78d 38d2dc343b0f
With the Verizon/CDMA iPhone, Webb believes Apple's designers "moved the GPS and Wi-Fi antennas beneath the back glass and turned the top antenna into a second antenna for the cell phone." This brought spatial diversity to the iPhone. This design helps solve the Antennagate problem, because the phone can switch between the antennas depending on signal conditions.

"If you cover up an antenna, you're probably not covering up both antennas," Webb explains. "Spatial diversity on the receiving side is required for use with the Verizon network."

The Verizon iPhone had 'receive diversity' -- it used two antennas for receiving data, but may have only transmitted on the bottom antenna. With the iPhone 4S, Apple claims to have both 'send and receive diversity' for GSM and CDMA. They're using this diversity as the solution to the antenna problem.

"The iPhone 4S may indeed be the first phone to have diversity on both the send and receive sides, and that is a decently big deal. They still have the antenna around the rim, though, so it's evolutionary, not revolutionary."

Image via This Is My Next

Top Rated Comments

ikir Avatar
128 months ago
Wait, I thought there was no problem with the iPhone 4's antenna. How can Apple fix a problem they claimed didn't exist?


;)

They improved the antenna, it doesn't mean antenna was broken. Indeed iPhone4 receive much more better than 3GS.
Score: 18 Votes (Like | Disagree)
diamond.g Avatar
128 months ago
Wait, I thought there was no problem with the iPhone 4's antenna. How can Apple fix a problem they claimed didn't exist?


;)
Score: 17 Votes (Like | Disagree)
bpeeps Avatar
128 months ago
Significant Antenna Upgrades my ass.

16 months for this?

God, I'm so mad right now.

Can't wait for you to let us know in every single post on the forums today.
Score: 14 Votes (Like | Disagree)
KPOM Avatar
128 months ago
So, Apple's announcement today: "After sixteen months, we've worked out the kinks. Enjoy." :confused: Oh well, life moves on.

They worked out the kinks, put a brand new processor in it that is twice as fast and consumes the same power, and added a voice recognition system that actually seems to work. If someone installed an engine in your car that had twice the horsepower, got the same fuel economy, and added a brand new GPS navigation system, would you complain?
Score: 13 Votes (Like | Disagree)
chrono1081 Avatar
128 months ago
I thought the upgrade was great. I don't get why people are disappointed. Technology only moves so fast. This year a speed bump, next year, a redesign, just like the iPhone 4 and 3GS before it.

As an indie game dev I'm excited about the new graphics capabilities, I LOVE the mirrored air play, and the tech demo that Epic released was very impressive.

Siri also has me interested which is funny because originally I thought it would be dumb, then I saw the video...

I also like the improved browsing speeds and storage bump. Very nice (and realistic) upgrade if you ask me.
Score: 10 Votes (Like | Disagree)
840quadra Avatar
128 months ago
Significant Antenna Upgrades my ass.

16 months for this?

God, I'm so mad right now.

So you read and understood the entire press release in less than 1 minute?

I can see by the image it looks quite similar to my current iPhone 4, but I am going to actually read the article and press release before my knee-jerk reaction. ;)
Score: 9 Votes (Like | Disagree)

Top Stories

iOS 14 on iPhone feature emergency

Apple Releases iOS and iPadOS 14.7.1 With Fix for Touch ID Apple Watch Bug

Monday July 26, 2021 9:48 am PDT by
Apple today released iOS and iPadOS 14.7.1, minor bug fix updates that come just a week after the release of iOS 14.7, software that introduced new Apple Card features and support for the MagSafe Battery Pack. The iOS and iPadOS 14.7.1 updates can be downloaded for free and the software is available on all eligible devices over-the-air in the Settings app. To access the new software, go to...
iPad mini pro feature 2

iPad Mini 6 to Feature 8.3-Inch Display With No Home Button and Narrower Bezels

Monday July 26, 2021 12:26 pm PDT by
The sixth-generation iPad mini that's in the works will have an 8.3-inch display, according to display analyst Ross Young. That will be larger than the current 7.9-inch display, with the larger size due to the removal of the Home button and a narrower bezel design. Rumors about the iPad mini 6 have been picking up in recent weeks ahead of its prospective launch this fall. Apple analyst...
iphone 12 pro gold

Report: iPhone 14 Pro Models to Feature Tough Titanium Alloy Chassis

Monday July 26, 2021 1:12 am PDT by
Next year's "iPhone 14" series is expected to feature high-end models with a new titanium alloy chassis design, claims a new investors report by JP Morgan Chase. According to the report, the use of titanium alloy will be one of the biggest changes to the case design in the 2022 iPhone series, and Foxconn will be the exclusive manufacturer of the titanium frames for the high-end models....
nothing ear 1 buds 1

Nothing 'Ear (1)' True Wireless Earbuds Launch to Take on AirPods Pro With ANC and Unusual Design for $99

Tuesday July 27, 2021 7:57 am PDT by
Nothing, a new brand from OnePlus founder Carl Pei, has today officially launched the "Ear (1)" true wireless earbuds after months of anticipation around the company's AirPods Pro rival. The Ear (1) features an in-ear design, Active Noise Cancelation, Bluetooth 5.2, IPX4 water resistance, and a charging case with Qi-compatible wireless charging and a USB-C port. Fast pairing is supported on...
apple mac business page

Apple Shares 11 Reasons Why Business Users Should Choose Macs

Monday July 26, 2021 11:35 am PDT by
Apple today updated its Apple at Work website with a new section dedicated to the Mac, which offers up 11 reasons why "Mac means business." On the webpage, Apple highlights the M1 chip as the number one reason why business users should choose a Mac, offering up an M1 overview [PDF] that explains the benefits of the M1 chip. The information isn't new, but it does provide a look at all of...
imac with accessories

Larger Redesigned High-End iMac Rumored to Launch Next Year

Monday July 26, 2021 3:45 am PDT by
Apple's larger redesigned iMac will arrive sometime in 2022 rather than later this year, according to the leaker known as "Dylandkt." On Twitter, Dylandkt claimed that Apple's "high end iMac" is not expected to release in the fourth quarter of 2021 alongside Apple's "M1X Macs" – a reference to Apple's redesigned MacBook Pro models – because "Apple simply does not want their devices to...
General iOS 14

iOS 14.7.1 and macOS Big Sur 11.5.1 Patch Security Vulnerability That May Have Been Actively Exploited

Monday July 26, 2021 11:55 am PDT by
Apple today released unexpected iOS 14.7.1 and iPadOS 14.7.1 updates to the public, and according to a newly released support document, the software addresses a serious security vulnerability that may have been exploited in the wild. Apple says that an application may have been able to execute arbitrary code with kernel privileges due to a memory corruption issue. "Apple is aware of a report ...
apple bitcoin hack

Is Apple Really Buying Bitcoin?

Monday July 26, 2021 3:07 am PDT by
A large number of websites and posts on social media are stoking rumors that Apple has purchased $2.5 billion worth of bitcoin in the company's first move into cryptocurrency, but is there any validity to the claims? Many people are citing the fact that Apple was looking for a Business Development Manager with experience in alternative payments, including cryptocurrency, earlier this year as ...
tesla red orange bg feature

Tesla CEO Elon Musk Takes Shots at Apple During Earnings Call

Monday July 26, 2021 4:53 pm PDT by
During a Tesla earnings call that took place today, Tesla CEO Elon Musk spent time sniping at Apple, reports CNBC. Musk criticized Apple's "walled garden" and made comments on the company's cobalt use. In a discussion about plans to allow Tesla competitors to use the Tesla electric vehicle charger network, Musk said that Tesla does not want to create a walled garden to "bludgeon" Tesla...
FaceID iMac REREREREMIX

Gurman: Face ID on the Mac Coming Within a 'Couple of Years'

Sunday July 25, 2021 7:09 am PDT by
Apple plans to bring Face ID to the Mac within the next "couple of years," respected Bloomberg journalist Mark Gurman said today in the latest edition of his Power On newsletter. In the newsletter, Gurman says that he believes Apple's ultimate goal is to shift all of its products to Face ID, including the lower-end iPhones such as the iPhone SE and the iPad Air, which feature Touch ID....