A reconfigurable multi-mode multi-band transmitter with integrated frequency synthesizer for short-range wireless communication

A reconfigurable multi-mode multi-band transmitter with integrated frequency synthesizer for short-range wireless communication. Qi, N., <a href="https://homes.luddy.indiana.edu/fc7/" target="_blank">Chen, Fan</a>, Zhang, L., Wang, X., & Chi, B. Journal of Semiconductors, 34(9):095008, IOP Publishing, sep, 2013.

Paper doi abstract bibtex

A reconfigurable multi-mode direct-conversion transmitter (TX) with integrated frequency synthesizer (FS) is presented. The TX as well as the FS is designed with a flexible architecture and frequency plan, which helps to support all the 433/868/915 MHz ISM band signals, with the reconfigurable bandwidth from 250 kHz to 2 MHz. In order to save power and chip area, only one 1.8 GHz VCO is adopted to cover the whole frequency range. All the operation modes can be regulated in real time by configuring the integrated register-bank through an SPI interface. Implemented in 180 nm CMOS, the FS achieves a frequency coverage of 320–460 MHz and 620–920 MHz. The lowest phase noise can be −107 dBc/Hz at a 100 kHz offset and −126 dBc/Hz at a 1 MHz offset. The transmitter features a + 10.2 dBm peak output power with a +9.5 dBm 1-dB-compression point and 250 kHz/500 kHz/1 MHz/2 MHz reconfigurable signal bandwidth.

@article{nan2013reconfigurable,
	doi = {10.1088/1674-4926/34/9/095008},
	url = {https://doi.org/10.1088/1674-4926/34/9/095008},
	year = 2013,
	month = {sep},
	publisher = {{IOP} Publishing},
	volume = {34},
	number = {9},
	pages = {095008},
	author = {Nan Qi and {<a href="https://homes.luddy.indiana.edu/fc7/" target="_blank">Chen, Fan</a></span>} and Lingwei Zhang and Xiaoman Wang and Baoyong Chi},
	title = {A reconfigurable multi-mode multi-band transmitter with integrated frequency synthesizer for short-range wireless communication},
	journal = {Journal of Semiconductors},
	abstract = {A reconfigurable multi-mode direct-conversion transmitter (TX) with integrated frequency synthesizer (FS) is presented. The TX as well as the FS is designed with a flexible architecture and frequency plan, which helps to support all the 433/868/915 MHz ISM band signals, with the reconfigurable bandwidth from 250 kHz to 2 MHz. In order to save power and chip area, only one 1.8 GHz VCO is adopted to cover the whole frequency range. All the operation modes can be regulated in real time by configuring the integrated register-bank through an SPI interface. Implemented in 180 nm CMOS, the FS achieves a frequency coverage of 320–460 MHz and 620–920 MHz. The lowest phase noise can be −107 dBc/Hz at a 100 kHz offset and −126 dBc/Hz at a 1 MHz offset. The transmitter features a + 10.2 dBm peak output power with a +9.5 dBm 1-dB-compression point and 250 kHz/500 kHz/1 MHz/2 MHz reconfigurable signal bandwidth.}
}

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