Apple balked at the QTM 525 millimeter-wave antenna module offered to it by Qualcomm because it doesn’t fit into the sleek industrial design Apple wants for the new phone, a source with knowledge of Apple’s plans told Fast Company. Qualcomm will provide the 5G modem chip–its Snapdragon X55, also used in Samsung’s new Galaxy S20 phones–for the newest iPhone, which will likely be announced in the fall.
As a backup, Apple is reportedly working on alternate design for the iPhone that uses both Qualcomm's modem and antenna. This design would require Apple release a device that is slightly thicker than it wants. Qualcomm has said that its QTM 525 supports smartphone designs 'sleeker than 8 millimeters thick'.
Fast Company believes that Apple is taking on some risk here given its track record with antenna design. The iPhone 4 antenna sparked Antennagate and sources say a more recent design used twice as a much power as comparable antennas. Additionally, the design for mmWave devices is more difficult because they send and receive higher frequency signals and have less room for error in their design.
The 5G iPhone will reportedly use a 'phased array' antenna with two parts that work together to form a beam that can be electronically steered in different directions.
More details in the full report linked below...