RF power MOSFETs

[Winfield Hill]

Speaking of RF power MOSFETs, What are the highest
frequencies available, and what are the highest
power levels available (at lower frequencies).


--
Thanks,
- Win

 

[Jan Panteltje]

On a sunny day (26 Jul 2019 19:24:01 -0700) it happened Winfield Hill
<winfieldhill@yahoo.com> wrote in <qhgck1023l4@drn.newsguy.com>:

Speaking of RF power MOSFETs, What are the highest
frequencies available, and what are the highest
power levels available (at lower frequencies).

I dunno, but I am into reading these threads:
https://forum.batc.org.uk/viewtopic.php?f=101&t=6211&sid=2efffe16241892e1f9953d8f35fed8da
https://forum.batc.org.uk/viewtopic.php?f=101&t=6152&sid=2efffe16241892e1f9953d8f35fed8da

 

[Bill Beaty]

On Friday, July 26, 2019 at 7:24:15 PM UTC-7, Winfield Hill wrote:

Speaking of RF power MOSFETs, What are the highest
frequencies available, and what are the highest
power levels available (at lower frequencies).


--
Thanks,
- Win

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.

 

[Martin Riddle]

On 26 Jul 2019 19:24:01 -0700, Winfield Hill <winfieldhill@yahoo.com>
wrote:

Speaking of RF power MOSFETs, What are the highest
frequencies available, and what are the highest
power levels available (at lower frequencies).

Looking at the macom website...

5MHz to 1GHz
Min 5W
Max 600W


Cheers

 

On Sat, 27 Jul 2019 13:28:53 -0700 (PDT), Bill Beaty
<billb@eskimo.com> wrote:

On Friday, July 26, 2019 at 7:24:15 PM UTC-7, Winfield Hill wrote:
Speaking of RF power MOSFETs, What are the highest
frequencies available, and what are the highest
power levels available (at lower frequencies).


--
Thanks,
- Win

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.

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.

 

[Lasse Langwadt Christense]

søndag den 28. juli 2019 kl. 02.58.03 UTC+2 skrev Martin Riddle:

On 26 Jul 2019 19:24:01 -0700, Winfield Hill <winfieldhill@yahoo.com
wrote:

Speaking of RF power MOSFETs, What are the highest
frequencies available, and what are the highest
power levels available (at lower frequencies).

Looking at the macom website...

5MHz to 1GHz
Min 5W
Max 600W

I believe NXP have some rated for 1800W