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This paper presents a wideband 40 GHz divide-by-2 quadrature injection locked frequency divider (Q-ILFD) as an enabling component for sliding-IF 60 GHz transceivers. The design incorporates direct injection topology and input power matching using interconnect inductances to enhance injection efficiency. This results in an excellent input sensitivity and a wide locking range. Fabricated in a 65 nm...
A 54.6 GHz divide-by-3 injection locked frequency divider with low power consumption is presented. A resistive feedback is implemented to achieve a stable dc input and higher injection efficiency. Compared with the conventional design, it exhibits a better supply voltage rejection and wider locking range while a small silicon area is maintained. Fabricated in a TSMC 65 nm bulk CMOS process, this divider...
A 60 GHz I-Q VCO covering the frequency range from 57.5 to 63.1 GHz is presented. It exhibits a phase noise of - 95.3 dBc/Hz at 1 MHz offset from a 57.5 GHz carrier. Fabricated in a 65 nm bulk CMOS process, the two VCO-cores consume 30 mA in total from a 1.2 V supply.
This paper presents two monolithic transformer structures exhibiting high self resonance frequencies(fSR). Effect of positive and negative coupling factor on self resonance frequency is investigated. The transformer turn ratio and structure is selected to improve design and ease layout of a high frequency LNA and VCO. Measurement results of a transformer show good agreement with simulated values and...
This paper presents a low power, low phase noise mm-wave voltage controlled oscillator. The VCO can be tuned from 41 to 44.5 GHz (8% tuning range) and utilizes a differential tuning mechanism based on varactors and fixed MIM capacitors. Fabricated in a bulk CMOS 65 nm technology, it consumes 3.6 mW and exhibits a phase noise of -106 dBc/Hz at 1 MHz offset from a 41.2 GHz carrier. The resulting FOM...
This paper presents a broadband, highly linear amplifier suitable for multi-standard mm-wave applications such as car radar, LMDS and satellite return channel. It can also be utilized as an efficient wideband output buffer, for measurements of mm-wave circuit components. It exhibits a 3-dB bandwidth of 40 GHz with a pass-band gain of 6 dB. The presented amplifier is highly linear with an IP3 of +18...
This paper presents a broadband, static, 2:1 frequency divider in a bulk 90 nm CMOS LP (low-power) technology with maximum operating frequency of 35.5 GHz. The divider exhibits an enhanced input sensitivity, below 0 dBm, over a broad input range of 31 GHz and consumes 24 mA from a 1.2 V supply. The phase noise of the divider is -124.6 dBc/Hz at 1 MHz offset from the carrier.
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