Low Loss, Wideband, and Compact CPW-Based Phase Shifter for Millimeter-Wave Applications

Abdellatif, A.; Faraji-Dana, MohammadSadegh; Ranjkesh, Nazy; Taeb, Aidin; Fahimnia, M.; Gigoyan, Suren; Safavi‐Naeini, Safieddin

doi:10.1109/tmtt.2014.2365539

Cited by 20 publications

(10 citation statements)

References 11 publications

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“…Different types of low cost and high performance phase shifters have been presented recently [1], [2]; however, they have some practical limitations in terms of size, loss or bandwidth. We have proposed a phase shifter that uses a high dielectric constant Barium Lanthanide Tetratitanates (BLT) BLT ceramics [3]. These ceramics have very high dielectric constant ( r =70-170) which makes the proposed phase shifter very compact.…”

Section: Introductionmentioning

confidence: 99%

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Wide-band phase shifter for mmWave phased array applications

Abdellatif

Aziz

Ranjkesh

et al. 2015

Global Symposium on Millimeter-Waves (GSMM)

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This paper proposes a new wide-band phase shifter for mmWave phased array applications. The proposed phase shifter is compact and has both a low absolute insertion loss and low insertion loss variation. The wide-band frequency characteristics is obtained by simple but effective matching technique. The phase shifter is based on loading a CPW line with a high dielectric constant BLT ceramic. For a sample with a length of 4mm, a phase shift of 360º at 33 GHz is obtained while the average insertion loss is less than 1.4dB for a bandwidth of more than 20 GHz.

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Section: Introductionmentioning

confidence: 99%

“…This mismatch affects the overall phased array performance. In this paper, a simple but effective matching technique has been introduced bandwidth of the proposed phase shifter in [3] II. DESIGN As shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Wide-band phase shifter for mmWave phased array applications

Abdellatif

Aziz

Ranjkesh

et al. 2015

Global Symposium on Millimeter-Waves (GSMM)

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“…Loading a CPW line with a variable capacitor is one practical approach. This simple but efficient idea has been implemented in the microwave/millimetre-wave range using various techniques [4,5].…”

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confidence: 99%

Low‐loss compact MEMS phase shifter for phased array antennas

et al. 2015

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A compact and low-loss MEMS-based phase shifter is proposed for microwave/millimetre-wave phased array antenna systems. The proposed phase shifter is an alumina-based CPW line, loaded with a variable series capacitor. The phase shifter uses an electromagnetic MEMS actuator to change the capacitor value. A simple three-mask surface micromachining process has been developed for device fabrication. The measurements at 26 GHz show a phase shift of 20°. The overall size of the phase shifter (including the actuator) is 0.5 × 1.5 mm. The measured average insertion loss is 0.75 dB with a variation of 0.4 dB for different phase shifts across the band from 24.5 to 26.5 GHz.

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“…As a highly promising response to these challenges, the authors presented a novel low-loss phase shifter based on very high dielectric constant materials, such as Barium Lanthanide Tetratitanates (BLT) ceramics in [24] and [25]. Based on this new concept, low insertion loss and compact phase shifters with minimal insertion loss variation have been developed.…”

Section: Introductionmentioning

confidence: 99%

A low-cost wideband phase shifter for two-way mm-wave phased array antenna system

Al‐Saedi

Abdel‐Wahab

Gigoyan

et al. 2017

Int. J. Microw. Wireless Technol.

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This paper presents a wideband, low-cost, high-performance, and continuous phase shifter for millimeter-wave (mm-wave) phased array systems. Its operational principle is based on modifying the propagation mode of a grounded coplanar waveguide (GCPW) line by placing a high dielectric constant slab over the GCPW line. The propagation constant and hence the phase shift is varied by changing the air gap height between the GCPW line and the dielectric slab. As a proof of concept, a piezoelectric transducer is used to precisely control this air gap height. A printed circuit board-based phase shifter prototype has been designed, fabricated, and tested at two different frequency bands (19–21 and 28.5–30.5 GHz), which are the downlink and uplink bands, respectively, of the Ka-band two-way satellite communication system. A continuous and almost linear phase–voltage characteristic has been achieved experimentally with average phase shift variations 170° and 260° over the two bands, respectively. The footprint of the proposed phase shifter is 2.1 mm×3 mm, which is quite small and suitable for low-profile mm-wave applications. The average insertion losses over the two bands are <0.53 and 2.35 dB with very low variations±0.22 and ±0.35 dB, respectively.

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Low Loss, Wideband, and Compact CPW-Based Phase Shifter for Millimeter-Wave Applications

Cited by 20 publications

References 11 publications

Wide-band phase shifter for mmWave phased array applications

Wide-band phase shifter for mmWave phased array applications

Low‐loss compact MEMS phase shifter for phased array antennas

A low-cost wideband phase shifter for two-way mm-wave phased array antenna system

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