PURPOSE:To improve the overall reception sensitivity of a receiver while noise is reduced and crosstalk is suppressed by bringing the impedance viewed from the input side into an infinite value substantially at an intermediate frequency and short-circuiting the impedance to a frequency near DC. ...
This single transistor audio mixer is used in an amplifier circuit design with base driven transistor and with its emitter being current controlled, most of the driving current flows through the collector away. Using the values in the audio mixer circuit shown in the diagram, the collector current...
[IEEE 1957 Transistor and Solid-State Circuits Conference - Philadelphia, PA, USA (1957.02.14-1957.02.15)] 1957 IEEE International Solid-State Circuits Con... P Thompson,J Mitchell 被引量: 0发表: 1957年 [IEEE 1957 Transistor and Solid-State Circuits Conference - Philadelphia, PA, USA (...
Subharmonic double-balanced mixer Two embodiments of the current invention using a two-level transistor circuit are described. In one of the embodiments, the RF section is in the bottom level transistors and in the other, the LO section is in the bottom level ... GM Rebeiz,K Nimmagadda - ...
The circuit has two transistor pairs, each having two complementary transistors (T1,T3, and T2,T4). The emitters (or the sources) of these transistors are connected together through a common node point (P1 and P2). There is an input voltage source (UIN) which controls the bases (or ...
The two AC signals are also imported to a homemade mixer circuit to pick up the signal at a frequency of 30 kHz, which is transmitted to the lock-in amplifier as a reference. SEM images of cells are taken by using FEI Quanta 200. References 1. Bao, G. & Suresh, S. Cell and ...
The harmonic-balanced simulations in Agilent advanced design system tool with an emphasis on the device-circuit interaction are used to analyse the RF mixer performance, such as output spectrum, 1-dB compression point, and conversion gain in comparison with 32-nm conventional n-metal oxide ...
摘要: Direct mixer with transistor and sample-and-hold module using a baseband transposition of an RF signal with a highly dynamic setup and low noise factor.收藏 引用 批量引用 报错 分享 文库来源 其他来源 求助全文 DIRECT MIXER WITH TRANSISTOR AND SAMPLE-AND-HOLD M 优质文献 ...
In a method of using a bipolar junction transistor as a self-oscillating down converter of a satellite down converter, a bipolar junction transistor substitutes for a mixer and a local oscillator in a signal processing circuit to achieve... MJ Chen - US 被引量: 152发表: 2003年 Direct measur...
12 and 13 may be any functional circuit, such as a mixer, oscillator, power amplifier, or the like. Further, the RF signals conducted by these circuits may be related or unrelated. In FIG. 1, circuit 11 conducts a signal that is independent of the signal conducted by circuits 12 and 13...