A low-cost 8 to 26.5 GHz phased array antenna using a piezoelectric transducer controlled phase shifter

Yun, Tae‐Yeoul; Chang, Kai

doi:10.1109/8.947020

Cited by 42 publications

(2 citation statements)

References 17 publications

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“…The proposed phase-shifting structure can be seen as a meander microstrip line with moveable metal plate. According to [16]- [17], the corresponding equivalent L-C is illustrated in Fig. 5.…”

Section: B Reconfigurable Series-fed Phase-shifting Structurementioning

confidence: 99%

Aperture-Coupled Beam-Scanning Patch Array With Parasitic Elements Using a Reconfigurable Series-Fed Phase-Shifting Structure

Shao

Yang

Kamada

et al. 2023

Antennas Wirel. Propag. Lett.

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In this letter, we propose a reconfigurable series-fed phase-shifting structure with movable metal plate for active millimeter wave beam-scanning application. The proposed phase-shifting structure can be equivalent to a certain number of phase shifters in the series-fed network. It can be easily controlled with only one metal plate, which further simplify the design of control system for phase shifters and reduce the cost. A prototype of 1-D aperture-coupled patch array with parasitic elements at 28GHz is designed, fabricated and measured for verifying the performance of the proposed phase-shifting structure. The measurement results at 28 GHz show 1-D beam-steering capability with maximum steering angle of ~22 deg at H-plane can be achieved, revealing great potentials for developing the simple control and cost-effective active phased array for millimeter wave wireless power transmission application.

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Section: B Reconfigurable Series-fed Phase-shifting Structurementioning

confidence: 99%

Aperture-Coupled Beam-Scanning Patch Array With Parasitic Elements Using a Reconfigurable Series-Fed Phase-Shifting Structure

Shao

Yang

Kamada

et al. 2023

Antennas Wirel. Propag. Lett.

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“…An alternative option is the rotation of dielectric slabs inside a rectangular waveguide, which changes the effective propagation constant and controls the phase difference between consecutive slot elements [32], [33]. Other approaches include the microactuator-controlled accordionlike antenna with varying inter-element spacing of [34], the piezo-electrically actuated metasurface forming a Fabry-Perot cavity presented and developed in [35]- [37], and the arrays fed by phase shifters controlled via piezoelectrically-tuned dielectric overlays, as reported in [38], [39].…”

Section: A Prior Workmentioning

confidence: 99%

Mechanically Controlled, Wide-Angle Scanning, Series-Fed Antenna Array With Low Profile for High-Power Radar Systems

Milias¹,

Andersen²,

Jørgensen³

et al. 2023

IEEE Trans. Antennas Propagat.

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This paper presents the design and implementation of a mechanically-controlled, series-fed antenna array featuring wide-angle beamsteering at the X-band. A theoretical model of a series-fed array, including phase shifters inserted between consecutive elements, is initially developed to derive design rules and gain insight into crucial performance trade-offs. Subsequently, a mechanically-controlled, reflection-type phase shifter consisting of a branch line coupler and two Pi-network reflective loads is presented. A movable metallic overlay tunes the impedance of the reflective loads, thus effectively modifying the output phase. While requiring a minimal linear displacement of only 0.06λ0, this topology provides a maximum phase shift of 300 • with an average insertion loss of 1 dB and is exploited for synthesizing a series-fed patch array. Based on simulations and measurements, the proposed antenna offers an almost constant realized gain of about 15 dBi within a wide scanning range of ±50 • , and the side lobe level is better than -12 dB. The average total efficiency is 50%, and the cross-polarization levels are at least 11 dB below the maximum realized gain. The main weaknesses are the narrow bandwidth of 2.5% and the slight beam squint as the frequency varies. The proposed design is ideal for radars due to its excellent performance and high power-handling capability.

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Coplanar Stripline (CPS) Components

Suh¹

2005

Encyclopedia of RF and Microwave Engineering

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Coplanar stripline (CPS) is a balanced uniplanar transmission line, consisting of two metallic conductor strips separated by a certain gap width, on a substrate. Conventional CPS does not provide bottom metallization of the substrate for ground; instead, one of the conductor strips provides electric ground of the other signal strip. This article investigates (1) CPS transmission‐line characteristics for practical circuit design and analysis using closed‐form equations; (2) CPS circuit components such as resonators, filters, and “tee” junctions; and (3) applications to antennas and wireless power transmission. Various new CPS resonators are modeled and designed and their performance investigated in terms of Q factor or bandwidth. As applications of the proposed CPS resonators, new CPS bandpass filters are demonstrated. The design methods of bandpass filters and their lumped‐element equivalent circuits are presented. A simple CPS lowpass filter is developed using interdigital capacitors and a CPS transmission line. For CPS component measurements, two types of broadband CPS‐to‐microstrip transition are introduced. Printed dipole antenna feeding can also be easily implemented using this transition. A novel CPS tee junction using coupled CPS (CCPS) is introduced. As an application of CPS tee junction, a twin‐dipole antenna fed by microstrip‐to‐CPS tee junction is presented at Ka band. A 1×8 printed dipole phased array is developed with the twin‐dipole antenna. Finally, as a circuit application of CPS, a dual‐frequency rectenna is developed at 2.45 and 5.8 GHz. For dual‐frequency rectenna components, a dual‐frequency antenna, CPS lowpass filter, and CPS bandstop filters are developed. To achieve high RF ‐to‐DC conversion efficiencies at both frequencies, diode analyses are performed for frequency‐insensitive high conversion efficiency.

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A low-cost 8 to 26.5 GHz phased array antenna using a piezoelectric transducer controlled phase shifter

Cited by 42 publications

References 17 publications

Aperture-Coupled Beam-Scanning Patch Array With Parasitic Elements Using a Reconfigurable Series-Fed Phase-Shifting Structure

Aperture-Coupled Beam-Scanning Patch Array With Parasitic Elements Using a Reconfigurable Series-Fed Phase-Shifting Structure

Mechanically Controlled, Wide-Angle Scanning, Series-Fed Antenna Array With Low Profile for High-Power Radar Systems

Coplanar Stripline (CPS) Components

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