Divide-by-4 injection-locked frequency divider using two linear mixers

作者：Chang Chia Wei^*; Jang Sheng Lyang; Juang Miin Horng

来源：Microwave and Optical Technology Letters, 2012, 54(6): 1359-1362.

DOI：10.1002/mop.26854

• active inductor
• divide-by-4 injection-locked frequency divider
• locking ranges
• linear mixer
• CMOS

This letter proposes a wide locking range and operation range divide-by-4 injection-locked frequency divider (ILFD) in the TSMC 0.18-mu m 1P6M RF-CMOS process.The divide-by-4 ILFD uses an active inductor to increase the tuning range and a transistor composite to serve an injection device with two linear mixers to enhance the locking range of ILFD. At the supply voltage of 1.7 V, and at the incident power of 0 dBm the operation range of the divide-by-4 is about 5.8 GHz, from the incident frequency 3.6 to 9.4 GHz, the percentage is 89.2%. The locking range of the divide-by-4 is 1.8 GHz, from the incident frequency 6.8 to 8.6 GHz, the percentage is about 23.4%. The core power consumption is 7.6 mW. The die area is 0.503 x 0.36 mm2.

• 出版日期2012-6