Single chip FMCW radar for target velocity and range sensing applications

Reynolds, L.D.; Ayasli, Y.

doi:10.1109/gaas.1989.69334

Cited by 22 publications

(7 citation statements)

References 4 publications

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“…Different modulation signals such as sine or sawtooth can also be implemented. Nevertheless, the triangle modulation is preferred since both distance and velocity of the target can be measured, taking advantage of the Doppler frequency shift effect caused by the movement of the target itself [12]. Due to the frequency modulation, the time delay can be measured as a frequency difference between the reference and the received frequency ramp (horizontal shift in time of the received signal frequency ramp in Figure 2).…”

Section: State Of the Artmentioning

confidence: 99%

Promise of a Better Position

et al. 2012

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I ndustrial automation today is an essential technology underlying our modern society. Advanced positioning and sensor feedback tasks in automation processes often require distance displacement detection, e.g., to measure and track the movement of robots. Furthermore, the detection of mechanical stress in complex industrial machinery through an accurate vibration analysis is often a task of major interest. Therefore, high-resolution distance measurements with short-and long-range positioning are important for a large number of sensing applications and can also be used as a precondition for vibrometer applications. Several automation technologies rely on high precision positioning sensors to track linear as well as rotational movements of various machinery. The tracked positioning information provided by the sensor interface determines the accuracy of the positioning system, thus the quality

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Section: State Of the Artmentioning

confidence: 99%

Promise of a Better Position

et al. 2012

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“…Recently, VCOs with FM capability are used in remote sensing application. For instance, frequency modulated continous wave (FMCW) radar is commonly used for range and velocity detection [3][4]. Figure 1 shows a typical triangular FMCW waveform.…”

Section: Introductionmentioning

confidence: 99%

An X-band Transmission Line Based CMOS VCO with FM Modulation

Wang

Tzuang

2007

2007 Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems

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An X-band voltage-controlled oscillator (VCO) with frequency modulation (FM) capability is realized in a 0.18gm 1P6M CMOS technology. The characteristics of the VCO modulated by a 100KHz triangular waveform are presented and investigated. The passive components of the VCO are implemented by two-dimensional (2-D) complementary-conducting strip transmission lines (CCS TLs), varactors and metal-oxide-metal (MOM) capacitors for substrate coupling consideration. The measured VCO with free running phase noise of -83.2 dBc/Hz at 100KHz offset from the carrier. The compact VCO chip size is 330 x 450gm2excluding pads. Furthermore, the modulation bandwidth is up to 400MHz of the proposed VCO with direct FM modulation which could improve range resolution in a radar system.

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“…Frequency modulated continuous wave (FMCW) radar technology has been widely used in microwave and millimeter wave applications such as vehicle range detection [1] and gasassisted injection molding sensor [2]. This paper presents an system on package (SoP) integration of an RF frontend module for short distance moving object detection using Xband FMCW sensing technology.…”

Section: Introductionmentioning

confidence: 99%

A system-on-package integration of X-band FMCW sensor RF frontend module

Huang

Shen

2009

2009 Asia Pacific Microwave Conference

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A novel system on package (SoP) RF frontend module for X-band frequency modulated continuous wave (FMCW) sensor is presented in this paper for short distance moving object detection. A multifunction RFIC chip realized by typical 1P6M 0.18 μm deep n-well CMOS technology, a multilayer 180° hybrid and two embedded ring filters, two sets of antenna arrays, and all other necessary components are all integrated into a miniaturized module no larger than 35mm×35mm LTCC substrates. In addition to the 3.5dBm transmitter output and 6dB receiver conversion gain of the RFIC block, a 7.5dB-gain electric bandgap (EBG) structure backed single arm fractional spiral antenna element is developed for maximizing the detection range within the volume limit of the module. Besides the basic functionality of distance detection, angle detection is also accomplished by comparing the sum and difference patterns of an antenna element pair at receiving end. Each building block has been tested individually for verifying the functionality of the whole module. Good agreements between simulations and measurements have been obtained.Index Terms -frequency modulated continuous wave, low temperature co-fired ceramics, rat-race coupler, ring filter, singlearm fractional spiral antennas.

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Single chip FMCW radar for target velocity and range sensing applications

Cited by 22 publications

References 4 publications

Promise of a Better Position

Promise of a Better Position

An X-band Transmission Line Based CMOS VCO with FM Modulation

A system-on-package integration of X-band FMCW sensor RF frontend module

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