An 85-GHz injection-locked frequency divider with current-reuse pre-amplifier technique

Abstract

In this paper, the design of an 85-GHz injection-locked frequency divider (ILFD) with a current-reuse pre-amplifier is presented. Utilizing a current-reuse pre-amplifier can efficiently increase the input frequency locking range without extra power consumption. The divider is implemented in 90-nm CMOS technology for W-band (75 to 110 GHz) applications. The core area is 0.31×0.21 mm 2 , and the measured operation range is 78 ~ 90.6 GHz. The center frequency is 85 GHz and the locking range is 14.8%. The power is 2.33 mW excluding buffers from a 1.2 V supply voltage.

Divide-by-8 phase detector MMIC for PLL-based carrier recovery in E-band communication

“…To the author's knowledge, the most sensitive standalone E-band frequency dividers published to date are the static divider-by-2 presented in [16] and the ILFD in [17], measured with a minimum input power of −42 dBm and approximately −39 dBm, and fabricated in a SiGe and 90 nm CMOS process, respectively. In comparison, the MMIC described above is able to work with 12 dB less input power.…”