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In brief, some properties of non-Foster circuits (NFC) are linked to the negative group delay (NGD) network. These properties are negative group delay and phase. It means that the NGD in conjunction with the effect of negative impedance is used to improve bandwidth of radio frequency (RF) modules. In this paper, we propose a design of passive non-Foster circuit by using NGD network that designed by...
Negative impedance converter (NIC) is a broadband matching technique in radio frequency (RF) based on the non‐Foster theory. This technique in conjunction with the effect of negative impedance has been proven to achieve a wider impedance matching bandwidth than other techniques. However, it still has problems in the areas of flexible connectivity, and mismatch in the real part of negative impedance...
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