77-GHz Four-Element Phased-Array Radar Receiver Front End

Seyyedesfahlan, Mehdi; Ozturk, Efe; Kaynak, Mehmet; Tekin, İbrahim

doi:10.1109/tcpmt.2016.2571742

Cited by 28 publications

(10 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The configuration also helps pave the way to improve enormous varieties of components and devices, e.g., filters [37], resonators, impedance adapters [20], and couplers. Nevertheless, there remains a lot of work on a shorter latency to enable car radar applications [38] and hence to make this competitive in the current industry landscape.…”

Section: Discussionmentioning

confidence: 99%

Towards 76-81 GHz Scalable Phase Shifting by Folded Dual-strip Shielded Coplanar Waveguide with Liquid Crystals

Li¹

2021

AETiC

View full text Add to dashboard Cite

Unconventional folded shielded coplanar waveguide (FS-CPW) has yet to be fully investigated for tunable dielectrics-based applications. This work formulates designs of FS-CPW based on liquid crystals (LC) for electrically controlled 0-360˚ phase shifters, featuring a minimally redundant approach for reducing the LC volume and hence the costs for mass production. The design exhibits a few conceptual features that make it stand apart from others, noteworthy, the dual-strip structure with a simplified enclosure engraved that enables LC volume sharing between adjacent core lines. Insertion loss reduction by 0.77 dB and LC volume reduction by 1.62% per device are reported at 77 GHz, as compared with those of the conventional single-strip configuration. Based on the proof-of-concept results obtained for the novel dual-strip FS-CPW proposed, this work provides a springboard for follow-up investible propositions that will underpin the development of a phased array demonstrator.

show abstract

Section: Discussionmentioning

confidence: 99%

Towards 76-81 GHz Scalable Phase Shifting by Folded Dual-strip Shielded Coplanar Waveguide with Liquid Crystals

Li¹

2021

AETiC

View full text Add to dashboard Cite

show abstract

“…While the distance to the target can be obtained, directional information of targets is still a challenge for location tracking. To this end, mechanical rotors [ 22 , 23 ] and phased arrays [ 24 ] are proposed to detect different targets at different locations and obtain their directional information, respectively. Nonetheless, mechanical devices are bulky while phased arrays are complex and costly.…”

Section: Introductionmentioning

confidence: 99%

Recent Development of Non-Contact Multi-Target Vital Sign Detection and Location Tracking Based on Metamaterial Leaky Wave Antennas

Yuan

2021

Sensors

View full text Add to dashboard Cite

Microwave radar sensors have been developed for non-contact monitoring of the health condition and location of targets, which will cause minimal discomfort and eliminate sanitation issues, especially in a pandemic situation. To this end, several radar sensor architectures and algorithms have been proposed to detect multiple targets at different locations. Traditionally, beamforming techniques incorporating phase shifters or mechanical rotors are utilized, which is relatively complex and costly. On the other hand, metamaterial (MTM) leaky wave antennas (LWAs) have a unique property of launching waves of different spectral components in different directions. This feature can be utilized to detect multiple targets at different locations to obtain their healthcare and location information accurately, without complex structure and high cost. To this end, this paper reviews the recent development of MTM LWA-based radar sensor architectures for vital sign detection and location tracking. The experimental results demonstrate the effectiveness of MTM vital sign radar compared with different radar sensor architectures.

show abstract

“…In recent decades, silicon-based technology makes it possible to realise complex phased array systems at a much higher level of integration and reliability, and ease implementing digital tuning and calibration techniques in integrated systems to improve the overall functionality and flexibility of the whole system. Phased array systems or subsystems implemented with silicon-based integrated circuits (ICs), suited for high data rate directional wireless communication or short-range radar applications, such as collision avoidance and assisted parking in automobiles, have already been extensively reported [3,[7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Robustness‐oriented P‐band phased array radar front‐end with high phase and gain resolution in 0.18 BiCMOS

Yun

et al. 2020

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

In this study, the authors present a P‐band phased array front‐end for radar applications, implemented using a 0.18 μm SiGe BiCMOS process, thereby enhancing robustness over process‐voltage‐temperature (PVT) variations. It comprises a low noise amplifier, 6‐bit attenuator, 6‐bit phase shifter, power amplifier, T‐R switches as well as control circuits. As the key here is to achieve high resolutions in both gain and phase controls, the 6‐bit attenuator and 6‐bit phase shifter are optimised by cascading unit cells with different topologies, hence ensuring a good balance between accuracy, silicon area and robustness. Temperature compensation techniques are also used in the low noise amplifier and power amplifier so that the circuit works robustly against PVT variations. Fabricated using TowerJazz 0.18 μm SiGe BiCMOS technology, the prototype front‐end occupies a chip area of 5×2.5thinmathspacenormalmm2, including bonding pads and test buffers. It performs with a receiver (RX) gain of 12 dB, a 3 dB noise figure, and a transmitter (TX) gain of 29 dB, while consuming 60 mW (RX mode) and 600 mW (TX mode) from a 3.3 V supply voltage. The chip is also measured in extreme conditions (e.g. temperatures exceeding 100°C) to ensure robust operation and is suitable for low‐cost phased array systems.

show abstract

77-GHz Four-Element Phased-Array Radar Receiver Front End

Cited by 28 publications

References 22 publications

Towards 76-81 GHz Scalable Phase Shifting by Folded Dual-strip Shielded Coplanar Waveguide with Liquid Crystals

Towards 76-81 GHz Scalable Phase Shifting by Folded Dual-strip Shielded Coplanar Waveguide with Liquid Crystals

Recent Development of Non-Contact Multi-Target Vital Sign Detection and Location Tracking Based on Metamaterial Leaky Wave Antennas

Robustness‐oriented P‐band phased array radar front‐end with high phase and gain resolution in 0.18 BiCMOS

Contact Info

Product

Resources

About