英语词汇“pi-network”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

4. A four-terminal set of three circuit elements in which one element is in series between two in parallel (so diagrammatically resembling the letter Π in shape). Frequently attributive as pi-network, etc. Usually written π or Π.

ΚΠ

1924 K. S. Johnson Transmission Circuits Teleph. Communication xi. 124 If the structure shown in Fig. 1 is considered to be made up of Π sections.., each section may be regarded as terminating in a mid-shunt iterative impedance.

1930 C. Dannatt & J. W. Dalgleish Electr. Power Transmission v. 118 This network is frequently used as an equivalent circuit for a transmission line, and is referred to as a π-circuit.

1950 W. C. Johnson Transmission Lines & Networks xiv. 303 The filters most generally used are made up of T or π sections and L ‘half sections’ connected on an image basis to form a ladder network... A lattice can be designed to provide characteristics unobtainable with the T or π.

1961 Amateur Radio Handbk. (ed. 3) vi. 175/1 The pi-network coupler is often used for delivering power to an aerial feeder.

1972 R. H. Warring Ham Radio v. 68 The adoption of a pi-network tank circuit does not automatically ensure that no harmonics are radiated which may show up..on near-by television receivers, when a transmitter is being worked on the various amateur bands.

2001 L-Match Design - New Program in nl.radio.amateur (Usenet newsgroup) 3 Oct. At the lower radio frequencies inconveniently large values of capacitance are sometimes needed. (T and Pi networks are popular because they can be designed to avoid these two disadvantages.)

单词	pi-network
释义	> as lemmas pi-network 4. A four-terminal set of three circuit elements in which one element is in series between two in parallel (so diagrammatically resembling the letter Π in shape). Frequently attributive as pi-network, etc. Usually written π or Π. ΚΠ 1924 K. S. Johnson Transmission Circuits Teleph. Communication xi. 124 If the structure shown in Fig. 1 is considered to be made up of Π sections.., each section may be regarded as terminating in a mid-shunt iterative impedance. 1930 C. Dannatt & J. W. Dalgleish Electr. Power Transmission v. 118 This network is frequently used as an equivalent circuit for a transmission line, and is referred to as a π-circuit. 1950 W. C. Johnson Transmission Lines & Networks xiv. 303 The filters most generally used are made up of T or π sections and L ‘half sections’ connected on an image basis to form a ladder network... A lattice can be designed to provide characteristics unobtainable with the T or π. 1961 Amateur Radio Handbk. (ed. 3) vi. 175/1 The pi-network coupler is often used for delivering power to an aerial feeder. 1972 R. H. Warring Ham Radio v. 68 The adoption of a pi-network tank circuit does not automatically ensure that no harmonics are radiated which may show up..on near-by television receivers, when a transmitter is being worked on the various amateur bands. 2001 L-Match Design - New Program in nl.radio.amateur (Usenet newsgroup) 3 Oct. At the lower radio frequencies inconveniently large values of capacitance are sometimes needed. (T and Pi networks are popular because they can be designed to avoid these two disadvantages.) extracted from pin.¹ < as lemmas
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> as lemmas