RF power MOSFETs

On a sunny day (26 Jul 2019 19:24:01 -0700) it happened Winfield Hill wrote in :

I dunno, but I am into reading these threads:

Modern microwave ovens? I've seen 300-watt 2.5GHz driver boxes, but not able to open them up. What band are "5G" transmitter towers emitting? I doubt it's klystron finals.

Looking at the macom website...

Cheers

The 5G frequencies in use are similar to 4G frequencies, i,e, a few GHz. Have they even decided what modulation to use at 5G mmWave (28+ GHz). ?Last time I looked, COFDM was the favorite.

Why would a base station need huge transmission power, especially when the cells become smaller and smaller.

For symmetric up/down speeds, such as telephony, the base station power should be similar to the handset power to have equal reach in both directions. When a base station serves a few dozen simultaneous users, the base station power only needs to be 15 to 29 dB stronger than an individual handset.

For asymmetric data rates(highher download speeds), it is advantageous to increase the base station power with a few dB. But since the cell sizes are dropping significantly, the required power is not very high.

I believe NXP have some rated for 1800W