A 60-GHz 2-bit Switched-Line Phase Shifter Using SP4T RF-MEMS Switches

Gong, Songbin; Han, Song; Barker, N. Scott

doi:10.1109/tmtt.2011.2112374

Cited by 79 publications

(33 citation statements)

References 16 publications

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“…With the integrated beam-steering lens antennas the number of beams, i.e., the number feed elements, is limited due to the increasing switching network losses. In future, low loss switches could be used, e.g., SP4T RF-MEMS with insertion loss of only about 1 dB at 75 GHz is reported in [29].…”

Section: Integrated Ltcc Feed Array and Switching Networkmentioning

confidence: 99%

Using Optimized Eccentricity Rexolite Lens for Electrical Beam Steering With Integrated Aperture Coupled Patch Array

Karttunen

Säily²,

Lamminen³

et al. 2012

PIER B

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Abstract-Design and measurement results of a beam-steering integrated lens antenna at 77 GHz are presented. An 8-element LTCC aperture coupled patch antenna feed array with a switching network is used to electrically steer the main beam in H-plane. A 100-mm diameter Rexolite (ε r = 2.53) lens is simulated and tested. The eccentricity of the lens is optimized in an earlier work with ray-tracing simulations for improved beam-steering properties compared to the conventional extended hemispherical and elliptical lenses. The beamsteering properties including scan loss, main-beam width and direction, side-lobe levels, directivity, and cross-polarization are analyzed in detail with both simulations and radiation pattern measurements. As expected, the results show that the side-lobe and cross-polarization levels are not predicted accurately with large feed offsets using the ray-tracing simulations. Nevertheless, it is shown that the lens shape can be successfully optimized with the simple and fast ray-tracing simulations. The measured half-power beam-width at 77 GHz is 2.5 • ± 0.2 • up to the largest tested beam-steering angle of 30 • . The optimized eccentricity low permittivity lens results in smaller scan loss than the conventional lenses.

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Section: Integrated Ltcc Feed Array and Switching Networkmentioning

confidence: 99%

Using Optimized Eccentricity Rexolite Lens for Electrical Beam Steering With Integrated Aperture Coupled Patch Array

Karttunen

Säily²,

Lamminen³

et al. 2012

PIER B

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“…1 Some phase shifter solutions working at Q-band have been implemented using several technologies, [3][4][5][6][7][8][9][10][11][12][13][14][15] such as monolithic microwave integrated circuit (MMIC) or microelectromechanical systems (MEMS), in which transmission line topologies with active devices are used to achieve the phase shift at a single frequency or over a couple of gigahertz bandwidths with the exception of one broadband design in Ref. 4.…”

Section: Introductionmentioning

confidence: 99%

Q-band 4-state phase shifter in planar technology: Circuit design and performance analysis

Villa

Cagigas²,

Aja

et al. 2016

Review of Scientific Instruments

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Articles you may be interested in Low noise, 0.4-3 GHz cryogenic receiver for radio astronomy Rev. Sci. Instrum. 85, 104710 (2014) A 30% bandwidth phase shifter with four phase states is designed to be integrated in a radio astronomy receiver. The circuit has two 90• out-of-phase microwave phase-shifting branches which are combined by Wilkinson power dividers. Each branch is composed of a 180• phase shifter and a band-pass filter. The 180• phase shifter is made of cascaded hybrid rings with microwave PIN diodes as switching devices. The 90• phase shift is achieved with the two band-pass filters. Experimental characterization has shown significant results, with average phase shift values of −90.7• , −181.7• , and 88.5• within the operation band, 35-47 GHz, and mean insertion loss of 7.4 dB. The performance of its integration in a polarimetric receiver for radio astronomy is analyzed, which validates the use of the presented phase shifter in such type of receiver. Published by AIP Publishing. [http://dx

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“…Previous research efforts on switched-line phase shifters in III-V technology include a Ka-band phase shifter using ohmic electrode sharing transistors [1] and a 4-bit Q-band phase shifter using InGaAs p-i-n diodes [2]. A V-band 2-bit phase shifter was reported using microelectromechanical systems (MEMS) switches in millimeter-wave frequencies [3]. However, p-i-n diodes require both positive and negative voltages and are high power consumers.…”

Section: Introductionmentioning

confidence: 99%

A 60 GHz switched-line type phase shifter using body-floating switches

Gul

Duong

Kim

et al. 2013

2013 International SoC Design Conference (ISOCC)

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In this study, a two-bit switched-line type phase shifter is designed and fabricated for 60 GHz phase array applications. A body-floating technique is used to reduce the insertion loss of the on-state switch while the off-state isolation is increased by the use of a resonating inductor connected across the switch. The size of the delay path in the phase shifter is reduced by adopting a lumped equivalent circuit realization. Measurements demonstrate a minimum insertion loss of 8.2 dB with an average value of 8.9 dB at 60 GHz, with a return loss smaller than 12 dB over the frequency range of 57 to 64 GHz.Keywords-Switched-line phase shifter, two-bit switched-line phase shifter.

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A 60-GHz 2-bit Switched-Line Phase Shifter Using SP4T RF-MEMS Switches

Cited by 79 publications

References 16 publications

Using Optimized Eccentricity Rexolite Lens for Electrical Beam Steering With Integrated Aperture Coupled Patch Array

Using Optimized Eccentricity Rexolite Lens for Electrical Beam Steering With Integrated Aperture Coupled Patch Array

Q-band 4-state phase shifter in planar technology: Circuit design and performance analysis

A 60 GHz switched-line type phase shifter using body-floating switches

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