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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Jae Jin Lee Dong Yun Jung Ki Chan Eun Seong Jun Cho Chul Soon Park |
| Copyright Year | 2007 |
| Description | Author affiliation: Intell. Radio Eng. Center (IREC), Inf. & Commun. Univ. (ICU), Daejeon (Jae Jin Lee; Dong Yun Jung; Ki Chan Eun; Seong Jun Cho; Chul Soon Park) |
| Abstract | We have developed a low power demodulator for a 60 GHz receiver using 0.13 um CMOS technology. The demodulator consists of two blocks, which are a detector and a post amplifier. The detector detects and demodulates a received signal by using a square-law-detection technique. In this case, because there is no millimeter wave oscillator for frequency conversion, the receiver block becomes simplified, miniaturized, and a structure for low power consumption. A microstrip line has been used for constructing matching networks. Also, a lambda/4 open stub is used for perfect rejection of a 60 GHz signal between the detector and the post amplifier. The post amplifier is composed of an input and output buffer and a gain stage. The cutoff frequency of the post amplifier is 2 GHz, and it has a flat gain within the bandwidth. Thus, the post amplifier acts like a low pass filter, which causes the demodulator not to need any filters and simplifies the system. The 2 Gbps demodulated amplitude-shift-keying (ASK) signal is obtained when the carrier frequency is 60 GHz. The input return loss is less than 25 dB at the center frequency of 60 GHz; the conversion gain of the demodulator is 7 dB when the input power of a demodulator is -13 dBm. The total power consumption is 21.4 mW. These results indicate that the proposed low power demodulator is suitable for 60GHz portable systems. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 2811457 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424407484 |
| DOI | 10.1109/APMC.2007.4554707 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-12-11 |
| Publisher Place | Thailand |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Demodulation Detectors CMOS technology Millimeter wave technology Frequency conversion Energy consumption Low pass filters Oscillators Microstrip Signal detection self heterodyne 60GHz millimeter wave demodulator 0.13um CMOS square-law detection microstrip line detector post amplifier ASK signal |
| Content Type | Text |
| Resource Type | Article |
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