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Those large external antennas are high gain. Gain is a function of antenna area: https://en.wikipedia.org/wiki/Aperture_(antenna)#Effective_area https://en.wiki
by sbierwagen 4y ago
Those large external antennas are high gain. Gain is a function of antenna area: https://en.wikipedia.org/wiki/Aperture_(antenna)#Effective_area https://en.wikipedia.org/wiki/Aperture_(antenna)#Effective_a...
Apple's antenna can only be smaller if it's lower gain. I would bet they're making that tradeoff because they don't need as much bandwidth. (Emergency pings could be measured in dozens of bytes, let alone kilobytes or megabytes.)
- squeaky-clean 4y agoThe Aperture and Gain section of that article says that gain refers to the directivity of an antenna > antennas with large effective apertures are considered high-gain antennas (or beam antennas), which have relatively small angular beam widths.
- DesiLurker 4y agoI wonder if there could be a bluetooth (or connected) high gain antenna attachment for the new iphone they could sell as accessory.
- Brusco_RF 4y agoNone of the RF ports come out to a connector so no that couldnt really work. You CAN get high gain antennas for things like your WiFi router, it's my goto when an elderly relative complains about their wifi range. You can't actually increase power with an (inactive) antenna but you CAN change it's radiation pattern. The higher gain omnidirectional antennas just take a radiation pattern that looks like a sphere (0dB gain) and squashes it into a donut shape. So you get more range laterally around the antenna at the expense of less above and below it
- deleted 4y ago[deleted]