Surface Acoustic Wave Multistrip Components and Their Applications

Marshall, F.G.; Newton, C.O.; Paige, E.G.S.

doi:10.1109/t-su.1973.29734

Cited by 13 publications

(5 citation statements)

References 13 publications

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“…The remainder 0.7 dB is caused by a combination of resistive loss in the electrode and dielectric loss in the LiNbO 3 film and the silicon substrate. Upon further optimization, a sub-2-dB IL with suppressed sidelobes [23] and spurious modes [40] is within reach. The implemented A1 SPUDT ADL shows the first step toward transversal filter synthesis in the sub-6-GHz 5G bands.…”

Section: E Discussionmentioning

confidence: 97%

“…Between 1 and 8 GHz, A0, A1, and S2 modes are observed along with their undertones and overtones. Further mitigation of these unwanted modes requires transducer design optimization [23] and spurious suppression techniques [40].…”

Section: A1 Spudt Adl Baseline Designmentioning

confidence: 99%

“…Second, L G sets the group delay. In addition to the baseline design with 20-μm L G , ADLs with longer L G (40,80, and 160 μm) are simulated. The IL and return loss (RL) are plotted in Fig.…”

Section: E Key Design Parameters Of A1 Spudt Adlmentioning

confidence: 99%

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Low-Loss 5-GHz First-Order Antisymmetric Mode Acoustic Delay Lines in Thin-Film Lithium Niobate

Yang

Link

et al. 2021

IEEE Trans. Microwave Theory Techn.

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In this work, we present the low-loss acoustic delay lines (ADLs) at 5 GHz, using the first-order antisymmetric (A1) mode in 128 • Y-cut lithium niobate thin films. The ADLs use a single-phase unidirectional transducer (SPUDT) design with a feature size of quarter acoustic wavelength. The design space is analytically explored and experimentally validated. The fabricated miniature A1 ADLs with a feature size of 0.45 µm show a high operating frequency at 5.4 GHz, a minimum insertion loss (IL) of 3 dB, a fractional bandwidth (FBW) of 1.6%, and a small footprint of 0.0074 mm 2. The low IL and high operating frequency have significantly surpassed the state-of-theart performance of ADLs. The propagation characteristics of A1 acoustic waves have also been extracted. The demonstrated designs can lead to low-loss and high-frequency transversal filters for future 5G applications in the sub-6-GHz bands.

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Section: E Discussionmentioning

confidence: 97%

Section: A1 Spudt Adl Baseline Designmentioning

confidence: 99%

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Low-Loss 5-GHz First-Order Antisymmetric Mode Acoustic Delay Lines in Thin-Film Lithium Niobate

Yang

Link

et al. 2021

IEEE Trans. Microwave Theory Techn.

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“…The perspectives of such a direction of studies are more promising than the design improvement. This is confirmed by the achievement of high values of specific parameters of FE devices due to application of ferroelectrics, A II B VI structures and other materials [1][2][3][4].…”

mentioning

confidence: 83%

“…The acoustoelectronic devices on surface acoustic waves (SAW), for example, having evident advantages as compared to devices based on other physical principles, sometimes are inferior due to relatively large magnitude of inherent signal losses. This problem is often solved using complicated design of interdigital transformers (IDT) or by introduction of supplementary radio devices [4,5]. In the first case, the one-directional IDT, multiple-strip couplers, in the second case, the phase-shifters are used.…”

mentioning

confidence: 99%

Selective polarization of ferroelectrics in functional electronics

Lepikh¹

1999

Semicond. Phys. Quantum Electron. Optoelectron.

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The selective polarization technique of ferroelectrics representing sound-conductors and piezoelectric transformers in different devices of functional electronics is described. The feature of the technique is the ability of creating the local polarization regions, with different, in the magnitude and orientation, polarization vectors and with different electrophysical parameters, in the monolithic ceramic sound-conductor. The examples of specific acousto-electron units based on surface acoustic waves with the essentially improved electrical parameters, simpler construction and higher processibility are presented. The features of the selective polarization process are shown, the recommendations on the usage of the technique are given.

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Ultrasonics at the physics exhibition

1973

Ultrasonics

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Surface Acoustic Wave Multistrip Components and Their Applications

Cited by 13 publications

References 13 publications

Low-Loss 5-GHz First-Order Antisymmetric Mode Acoustic Delay Lines in Thin-Film Lithium Niobate

Low-Loss 5-GHz First-Order Antisymmetric Mode Acoustic Delay Lines in Thin-Film Lithium Niobate

Selective polarization of ferroelectrics in functional electronics

Ultrasonics at the physics exhibition

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