Antenna Separation

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978mhz antenna

The size of this phone is 65mm x 145mm It operates on many cell bands including LTE-U 5Ghz, GSM 800 & GSM 950. The last two are very close to 1090 Mhz. How many mm spacing of antennas a visual estimate gives you? [image]

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978mhz antenna

All cell phones have both a transmitter & a receiver. How much is the spacing between transmitting & receiving antennas of cell phones? How much is the spacing between antennas on a cell phone tower?