【Abstract】 In order to design a small-sized, simple-structured, low-cost ultra-wideband high-low frequency nested antenna (high frequency: 1 427-2 690 MHz, low frequency 690-960 MHz), this paper first
The answer uses current series negative feedback. The answer is compiled from the postgraduate entrance examination materials.
I have a few questions
1. The load is a 50Ω output resistor. Shouldn't vo
[i=s]This post was last edited by littleshrimp on 2022-5-25 17:03[/i]This time we are going to dismantle the display screens of two Audi cars. One is a 5.8-inch display screen produced by Alpine that
The "Download and Comment on the Materials" activity in April has been successfully concluded. Netizens commented on the materials very actively, and everyone's enthusiasm can be felt across the scree
Researchers at Vanderbilt University in the United States have found that free electron lasers can selectively remove hydrogen atoms from the surface of silicon atoms in chips, thereby greatly improvi