A 4channel 28ghz power amplifier with 4bit digital phase. Efficient implementation of 90 phase shifter in fpga. Ferriss a dissertation submitted in partial fulfillment of the requirements for the degree of doctor of philosophy electrical engineering in the university of michigan 2008 doctoral committee. Phase shifters are devices, in which the phase of an electromagnetic wave of a given frequency can be shifted when propagating through a transmission line. The digital phase shifter is the digital device that helps in changing the phase of rf, wave signals with no change in amplitude. Thus, many alldigital dlls addlls providing the digital control code for the dcps have been proposed 3, 4. The tep20004 operates over the bandwidth of 2 to 4ghz. Photonic integrated circuits for coherent lidar paul j. Windows api dll files, linux drivers, python examples and much more. If the signals are converted to binary format, an exclusiveor xor gate can be used to for this purpose fig. Phase shifters and iq modulators admiral microwaves.
Paul suni th 18 coherent laser radar conference clrc 2016, june 26 july 1 1 photonic integrated circuits for coherent lidar paul j. Programmable phase shift circuit for an integrated powermeter. Phase perfect solid state, digital phase converter. Hence, no calibration is applied to the phase measurements. The proposed method can be further extended for achieving smaller phase steps. Oscillator, if intermediate frequency or in a digital processing subsystem. Typical 2nd and 3rd order intercept performance for a moderately fast phase shifter, i. Diverse rf semiconductor technologies are driving the 5g. The phase perfect digital phase converter is the only truly digital, solid state phase converter available. Digital phase shifter 6ghz quality rf test equipment.
Phase shifters can be controlled using analog signals or digital bits. The phase shifters are controlled via a serial interface. Miteq offers a 6bit to 18 ghz digital phase shifter operating as high as 18 ghz for ew applications. Introduction multiple input multiple output mimo is one of the promising techniques for improving the spectral efciency of wireless channels. Applications include controlling the relative phase of each element in a phase array antenna in a radar or steerable communications link and in cancelation loops used in high linearity amplifiers. Since we wished to file a patent application for the proposed phase shifter.
The spacer layer provides the required spacing between the substrate layer and the polyimide film layer. Multiple phase shifters can be controlled from a single pc via usb low weight at 1oz, means little or no stress on pcb connectors. Electronically steerable antenna array using pcbbased. Hvam abstractwe demonstrate microwave phase shifters based on electrically tunable silicononinsulator microring resonators mrrs. The phase shifters are easily programmable for fixed phase, swept phase. A 60ghz phase shifter integrated with lna and pa in 65 nm. Request pdf a 6bit digital phase shifter by using hemt technology a 6bit passive phase shifter for s frequency band has been designed in a standard hemt technology. Pdf this paper presents three different dband 110 170ghz phase shifters for highbandwidth communication and radar applications. In radio communication, phase shifters are used for electronic beam steering of. We specialize in developing phase shifters for critical space, telemetry, transceiver, radar and ew applications. The maps010164 is a gaas phemt 6bit digital phase shifter with an integrated cmos driver in a 4 mm pqfn plastic surface mount package.
L3 nardamiteq designs and manufactures a standard line of high quality phase shifters. A high resolution digital phase shifter using distributed mems. We have devised and fabricated two types of flexibleformat optical modulators that let us flexibly change the modulation format. It is highly preferable to keep the length of this word as small as possible. This paper presents a 180 digital phase shifter mmic employing two spdt switches which are realized. The lps402 digital phase shifter is a highly accurate, bidirectional, phase shifter. Tida00412 360w digital controlled phase shift full bridge. The application of taylor weighting, digital phase shifters. The daughtercard with preloaded firmware providing the required control functions for a phase shift full bridge converter. Applications include controlling the relative phase of each element in a phase array antenna in a radar or steerable. In this article, we present an efficient way of implementing 90 phase shifter using hilbert transformer with canonic signed digit csd coefficients in fpga. Phase shifters 6 bit, 618 ghz digital phase shifter 4 bit, 2.
Electronically steerable antenna array using pcbbased mems phase shifters. Our solidstate phase shifters incorporate a wide variety of techniques to achieve high performance over a wide range of specification requirements. The ps3800 rf phase shifter from ds instruments provides handheld standalone and remotecontrolled phase shifting from 0 to 355 degrees in 5. Controlling phase shift digitally a simple phase shift. When rst goes low, the wiper is positioned at the new setting. The premium choice in phase conversion for your hvac, cnc, wood working, elevator, and agriculture application. Adcdac digital phase shifter fem transciever one femcentric design option is a partial integration approach dotted box in figure 2 in which the mmwave pa, lna, switches, phase shifters and power combinerssplitters are integrated and, in some cases, the rfmmwave updown. Dc to 50 mhz, dual iq demodulator and phase shifter data sheet ad8333 rev. The most critical element is the 90 phase shifter, mainly for wide band if the sdr technology allows to move the phase shifter from analog into the digital part, where it can be realized nearly ideal by means of a hilbert transformer. Pdf design of five bit digital phase shifter researchgate. The ds1806 hex digital potentiometers wiper positions are under control of a simple threewire digital interface, which clocks the wiper position settings into the device over its dq line, while the rst line is high. Publishers pdf, also known as version of record includes final page, issue and.
Digital in the case of phase shifters means twostate devices, where the states have different insertion phases at microwave frequencies. The figure 3 shows the insertion loss response in phase degrees format. The in put output ports are well matched to 50 ohms. Tunable microwave phase shifter based on siliconon. Hybrid analogdigital beamforming, massive mimo, millimeter wave, phase shifter, rf chain i. This product offers exceptional power handling capability in excess of 25 dbm and switching speed of 20 ns maximum. The phase shifter with maximum frequency of 110 ghz showed insertion loss of about 2.
Digital phase shifters at macom we offer a comprehensive portfolio of 4bit and 6bit phase shifters. The critical component of the mems esa is a 3bit phase shifter that is implemented using mems varactors, where each phase shifter consists of two mems varactors. Forum for electromagnetic research methods and application technologies fermat investigation of xband digital highpower circulatorbased phase shifter yongguang li, ru meng and qi zhu department of eeis, university of science and technology of china key laboratory of electromagnetic space information, chinese academy of sciences. A novel digital 90degree phase shifter is described that avoids the use of conventional pll or dll. It is implemented using 27tap symmetric finite impulse response fir filter. By adjusting this reference phase control, which has a typical phase shift resolution of ten.
Down up phase shifter you are now in the line synchron submenu at the phase shifter menu line. Hmc648alp6e 6bit digital phase shifters adi mouser. This design has been optimized to minimize variation in attenuation over the phase shift range. Several of these phase shift sections can be cascaded to realize greater phase shifts. A plot showing simulated phase shifts versus frequency for each of the 16 states is shown in figure 3. The premium choice in phase conversion for your hvac, cnc. The application of taylor weighting, digital phase. Phase shifters 6 bit, 618 ghz digital phase shifter.
This device is ideally suited for phased array applications and interferometric receivers. Fractionaln synthesizer architectures with digital phase detection by mark a. To minimise hardware production costs, a complete digital realisation of this phase detector is. Two key novel circuits in the phase shifter are discussed, one of which has fast lockin process and the other of which has wide work range and ability against variation of pvt. For example, if the code of channel 1 is adjusted to 0000 and that of channel 2 is adjusted to 0001 and the same. Each of these devices operates with either serial or parallel control inputs. Tunable microwave phase shifter based on silicononinsulator microring resonator minhao pu, liu liu, weiqi xue, yunhong ding, lars h. Index terms digital phase shifter, pin diode, testfixture, thrureflectline trl calibration. These sparameter data files of both inductors and capacitors represent deembedded. A conceptually very simple direct frequency shifter that emulates a rotating halfwave plate has recently been demonstrated. Dcdc power converter with digital control using ucd38cc64evm030 daughtercard. Since the phase shifter is a programmable part of the decimator, it is necessary to have a digital word that corresponds to this requirement.
Phase shifters are at the heart of phased array systems which enable beam steering techniques. Macom and its affiliates reserve the right to make changes to the products or information contained herein without notice. Digital phase shifter article about digital phase shifter. N step, where n is the overall division factor of used frequency dividers, is described. Optical versus digital filters property digital filters optical filters gainloss gain is free gain expensive and adds noise loss changes filter response coefficient. The hmc649alp6e is a 6bit digital phase shifter which is rated from 3 to 6 ghz, providing 360 degrees of phase coverage, with a lsb of 5. Dc 40 ghz range for optical communications precision 2. The tida00412 ucd38psfbevm027 accepts a dc input from 370 to 400 vdc, and outputs a typical 12 vdc with fullload output power at 360 w, or full output current of 30 a.
In order to simplify the feed network, continuous adjustment for the excitation amplitude and phase of array elements can be adjusted as discrete adjustment, such as array thinning technology adopted for pattern synthesis by controlling the onoff status of elements 3, phase array technology adopting nbit digital phase shifter 1417, and pattern synthesis combining array thinning and. A digital phase shifter with linear phaseshift variations with a. The ds1806 hex digital potentiometers wiper positions are under control. The 4bit phase shifter allows the insertion phase of each channel to be set with 22.
Phase shifter machzehnder interferometer vary phase in one arm relative to the other m. Phase shifter fundamentals phase shifters are a critical component in many rf and microwave systems. Telemakus tep40005 digital phase shifter is a small usb connected and controlled laboratory quality phase shifter with a phase range of 360 degrees 400 degrees typical with 12bit, 0. The highpower phase shifters have been fabricated in a 0. With high level accuracy and minimal phase shift error, these 4 new models cover broadband, microwave. After designing the hardware, the standard definition file of. Digital phase shifters analog devices digital phase shifters change the phase of rf, microwave, or millimeter wave signals while providing no amplitude change. They are used in a variety of applications, including rf pa linearization rf distortion, amplitude and phase modulation, variable attenuators, and fiber optics.
Download readytouse system files to speed your design process. A microcontroller c generates the necessary steering. To exploit the full potential of mimo, one can leverage the conventional digital beamforming db. A pll is required to recover the data clock and generate the 10. Impulse output for synchronous control of other movistrob stroboscopes with external control. Phase shift is defined by the output of one channel relative to another. The lps802 provides calibrated phase control from 4 to 8 ghz with a 360 degree range and 1. Phase noise the phase shifters and iq modulators offered by. The device is easy to realize and intended to easily set and change a phaseshift step, carrying out the reverse manual and automatic phase change with a preset rate. The lps802 digital phase shifter is a highly accurate, bidirectional, phase shifter. Phaseshifter the reference dsp also implements a digital reference phaseshifter, which adds or subtracts the set reference phase angle from the phase values being sent to the demodulator dsp. Dc to 50 mhz, dual iq demodulator and phase shifter data. The lps402 provides calibrated phase control from 2 to 4 ghz with a 360 degree range and 1.
The phase control resolution of switchedtype phase shifters is limited by the. A 6bit digital phase shifter by using hemt technology. Analog devices hmc648alp6e 6bit digital phase shifters are available at mouser and offers 360 degrees of phase coverage and 5. Pdf dband digital phase shifters for phasedarray applications. The 4bit digitally controlled rf phase shifter is based on. Mar 01, 2008 the application of taylor weighting, digital phase shifters, and digital attenuators to phasedarray antennas.
The presented measurement setup is easy to rebuild in a laboratory environment or in a production line. A flat phase versus frequency response is clearly evident across the 26 to 30ghz frequency range. A high resolution phase shifter is designed using the proposed model and the simulation results are presented. Phase shifter top electrode is defined on the polyimide film that forms the movable membrane. The phase shifter is suitable for use in ddrtype high datarate communication. In many fields of electronics, it is often necessary to change the phase of signals. Coplanar waveguide cpw defined on the metallization layer of the substrate is used as the phase shifter bottom electrode. This high accuracy phase shifter is controlled with posit. Since only relative phase and magnitude information is of interest. Representing the filter coefficients by csd eliminates the need for multipliers and the filter is implemented using shifters and adderssubtractors. The integrated ttl compatible drivers provide a convenient digital interface for 6bit control. Low power analogue 90 degree phase shifter peter h.
The application of taylor weighting, digital phase shifters, and digital attenuators to phasedarray antennas. Beamforming implemented part in the digital and part in the rf domain tradeoff performance, power dissipation, implementation complexity subarrays contain rf channels with phase shifter. A 60 ghz digitally controlled phase shifter in cmos. This ultracompact usb device features a graphic display and audio feedback. Abstract iii order intercept point iip3 higher than 46dbm.
Criterions for the image attenuation are amplitude and phase errors in both branches the most critical element is the 90 phase shifter, mainly for wide band if the sdr technology allows to move the phase shifter from analog into the digital part, where it can be realized nearly ideal by means of a hilbert transformer lp. Automatic adjustment of the flash output to the frequency in both internal and external operation. A kband phase shifter was also designed to test the limits of the technology. Dual, quad, or hex digital potentiometers can be used to control all sections under control of a microprocessor, as shown in the phase shifterstereo synthesizer example of figures 48. It is also possible to load the transmission line digitally by employing fixed capacitances. F document feedback information furnished by analog devices is believed to be accurate and reliable. Forum for electromagnetic research methods and application. Analog phase shifters provide a continuously variable phase, most often controlled by a voltage. A 60ghz digitally controlled phase shifter in cmos eindhoven. By adjusting this reference phase control, which has a typical phaseshift resolution of ten. Phase shifter the reference dsp also implements a digital reference phase shifter, which adds or subtracts the set reference phase angle from the phase values being sent to the demodulator dsp. Electronically steerable antenna array using pcbbased mems. Hybrid analog digital beamforming, massive mimo, millimeter wave, phase shifter, rf chain i.
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