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This paper describes a WiFi/BT combo SoC with integrated dual-band PAs, LNAs and T/R switches, supporting concurrent receiving for improved throughput by 30% in dense networking environment of 2.4GHz ISM band and wide-range transmitting capability (>20dB) while keeping good output power accuracy and PA power efficiency. The measured 2.4GHz/5GHz WiFi 54Mbps RX sensitivity is −78.2/−78.1dBm and Pout...
This paper describes a dual-band 802.11abgn/ac compliant transceiver in a 4-in-l combo connectivity SoC. It integrates the PAs, LNAs, T/R switches, and the 5GHz Balun. Due to the transmitter architecture and adaptive biasing scheme both are tailored for wide bandwidth, the 5GHz transmitter achieves 18.2dBm average output power for 802.11ac VHT80 MCS9 (Modulation and Coding Scheme 9). Within the 80MHz...
A load-line adjusted 2.4GHz PA is designed to operate in full power (18dBm/150mA) & mid power (7dBm/19mA) in OFDM with ∼130mA saving. To improve network throughput in dense environment with per-packet TX power control, the phase-compensated power detector achieves ±0.6dB accuracy for the entire 5GHz band over 2∶1 VSWR and 16dBm±0.25dB over channel flatness in VHT80MCS9. The chip area is 0.21mm...
This paper presents a 55nm 4-in-1 (11b/g/n, BT, FM, and GPS) radio assembled side-by-side with a 3-metal layer integrated-passive-device (IPD) chip in a QFN40 package. One 2.4GHz transceiver is area-efficiently shared between WiFi and Bluetooth systems. Including a 3dB IPD insertion loss, at chip output (antenna port) the saturated output power of the 11bgn integrated PA is 25dBm; the receiver noise...
An all-digital polar transmit (TX) architecture exhibits advantages of low cost, low power, as well as reconfigurability with full usage of digital computational power [1,2,6]. The design challange is the need for continuous innovation to further enhance power efficiency and minimize silicon area while achieving the best-in-class RF performance. The design must also meet the increaing demand of concurrent...
A fully-integrated 60-GHz transceiver utilizing analog FSK modulation/demodulation to replace baseband processor has been demonstrated. Employing a discriminator with automatic adjustment and a folded dipole antenna pair (5-dBi gain for each), the transceiver achieves > 1Gb/s data transmission over 1 meter with BER <; 10-12 while consuming a total power of 500 mW.
A fully integrated 77 GHz FMCW automotive radar system in 65 nm CMOS includes clock generation and chip-antenna assembly. Incorporating a full-rate fractional-N synthesizer and a high-performance RF front-end, the radar achieves a maximum detectable distance of 106 meters for a mid-size car while consuming 243 mW from a 1.2 V supply.
A fully-integrated FMCW radar system for automotive applications operating at 77 GHz has been proposed. Utilizing a fractional- synthesizer as the FMCW generator, the transmitter linearly modulates the carrier frequency across a range of 700 MHz. The receiver together with an external baseband processor detects the distance and relative speed by conducting an FFT-based algorithm. Millimeter-wave PA...
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