The 2019 line-up of iPhones is expected to come with a changed antenna structure, according to famed Apple analyst Ming-Chi Kuo.

As part of the upcoming iPhones, Apple plans on using modified-PI Magnetic particle Inspection (MPI) material instead of using the Liquid Crystal Polymer (LCP) material which was used in the antennas of iPhones XS, XS Max and XR.

According to Kuo, the LCP limits the Radio Frequency (RF) performance of the handsets due to technology limitations and production issues, CNET reported on Sunday.

However, Kuo believes that the Cupertino, California-based company could still use LCP as the primary material for 5G antennas in 2020 iPhones.

The production issues affecting the RF performance of LCP antennas are expected to be resolved meanwhile, the report added.

With its 2019 line-up, Apple is expected to introduce the much awaited USB-C cables for the devices and bring improvements in iPhone's camera performance.

Kuo also predicted that Apple is expected to release a 5G-equipped iPhone in 2020 powered by chipsets from Qualcomm and Samsung. This would take the total iPhone shipments to 195-200 million units in two years.

Apple is also working on redesigning the printed circuit boards to be included in 2019 iPhone models using a new kind of material to clear out space for a bigger battery.

The iPhone maker is also working on improving the cameras on its 2019 phone line-up.

While the front camera would be upgraded from 7MP to 12MP, triple-camera setup would be implemented in the 6.5-inch and 5.8-inch OLED iPhones, along with a new super-wide 12MP lens

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