Moving Tunable Filters Forward: A \"Heterointegration\" Research Project for Tunable Filters Combining MEMS and RF SAW\/BAW Technologies

Hashimoto, Ken–ya; Kimura, Tetsuya; Matsumura, Toshiro; Hirano, Hideki; Kadota, Michio; Esashi, Masayoshi; Tanaka, Shuji

doi:10.1109/mmm.2015.2431237

Cited by 20 publications

(7 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this section an overview of recent research in the design of high performance switchable and reconfigurable BAW and SAW filter technologies is given. For example, [85], [86], [87], [88], [89], [90] describe research on the design of tunable and reconfigurable acoustic filters by incorporating switches as well as varactors within the acoustic devices. Another attractive approach is to integrate both switching and filtering functionalities onto a single device instead of the combination of switchplexers and conventional BAW filters.…”

Section: Tunable and Reconfigurable Acousticsmentioning

confidence: 99%

From Microwave Acoustic Filters to Millimeter-Wave Operation and New Applications

et al. 2023

View full text Add to dashboard Cite

This paper reviews the latest developments in microwave acoustic wave devices. After an introduction and brief history of bulk acoustic wave (BAW) and surface acoustic wave (SAW) devices, a review is given for guided SAWs and XBARs -two new technologies, which are promising for future 5G applications. Following this, we discuss recent simulation techniques, such as 3D finite element method (3D FEM) and simulation of nonlinearities, as well as filter synthesis. Next, a review on tunable and reconfigurable acoustics is given. Finally, we present the latest developments in microwave acoustics for millimeter-wave (mm-wave) operation as well as BAW oscillators.INDEX TERMS Bulk acoustic wave (BAW) devices, filter, filter-synthesis, front-end, high power, MTT 70th Anniversary Special Issue, multiplexer, nonlinearity, resonator, surface acoustic wave (SAW) devices.

show abstract

Section: Tunable and Reconfigurable Acousticsmentioning

confidence: 99%

From Microwave Acoustic Filters to Millimeter-Wave Operation and New Applications

et al. 2023

View full text Add to dashboard Cite

show abstract

“…The superior selectivity, linearity, and center frequency tunability of a passive-mixer-first acoustic-filtering front end come at the expense of requiring off-chip acoustic filters and being not able to widely adjust filtering BWs, when compared to monolithic mixer-first directconversion receivers [5]- [9]. The development of heterogeneously integrated mixer-first acoustic-filtering front ends with tunable filtering BWs (e.g., [27]) could be an interesting future research topic.…”

Section: B Mixer-first Acoustic-filtering Rf Front-endmentioning

confidence: 99%

A Passive-Mixer-First Acoustic-Filtering Chipset Using Mixed-Domain Recombination

Seo

Sha

Zhou

2022

IEEE Trans. Microwave Theory Techn.

View full text Add to dashboard Cite

A mixer-first acoustic-filtering high-intermediatefrequency (IF) superheterodyne radio frequency (RF) front end is presented, which utilizes a mixed-domain recombination architecture. By having a set of commutated switches or essentially a passive mixer before fixed-frequency acoustic filters, mixer-first acoustic filtering enables a widely tunable RF for the front end while preserving the acoustic filter's high-order filtering response and high linearity. Compared to the prior work that uses IF-only recombination, the proposed IF-and-baseband mixed-domain recombination supports a wider instantaneous bandwidth (BW) and higher RF while reducing the number of IF passive components that are lossy and bulky. A proofof-concept chipset is demonstrated; it consists of an RF frontend N-path commutated-LC passive mixer and an IF in-phase and quadrature (I-Q)-mismatch-compensating complex receiver in 65-nm CMOS as well as two 2.6-GHz Qorvo QPQ1285 bulkacoustic wave (BAW) filters. In measurement, the chipset operates across 3.5-6.5 GHz RF with a 160-MHz instantaneous BW, 10-dB noise figure (NF) at 3.5-GHz RF, and an out-of-band IIP3 of +27 dBm at 1 × BW offset.

show abstract

“…Historically the most studied in circuit theory, ladder passive filters are known to have low sensitivity to component values variations [5], [15]. In addition, ladder filters have the property that all the transmission zeros are included in the anti-resonant frequencies of the series arms and the resonant frequencies of the parallel arms [16], [17].…”

Section: B Ladder Structurementioning

confidence: 99%

Systematic Design Method of Passive Ladder Filters using a Generalised Variable

Perodou¹,

Komiienko²,

Scorletti³

et al. 2018

2018 Conference on Design of Circuits and Integrated Systems (DCIS)

View full text Add to dashboard Cite

This paper focuses on the design of passive filters with a ladder structure. Based on convex optimisation, we propose an approach to extend the traditional LC-ladder filter design method to lossless passive components. To achieve this, a generalised variable T (s) is introduced, leading to a new convex formulation of the design problem. The approach is applied on an academic design problem: the design of a LC-bandpass ladder filter. This provides a first and crucial step before designing filters of practical interest.

show abstract

Moving Tunable Filters Forward: A \"Heterointegration\" Research Project for Tunable Filters Combining MEMS and RF SAW\/BAW Technologies

Cited by 20 publications

References 42 publications

From Microwave Acoustic Filters to Millimeter-Wave Operation and New Applications

From Microwave Acoustic Filters to Millimeter-Wave Operation and New Applications

A Passive-Mixer-First Acoustic-Filtering Chipset Using Mixed-Domain Recombination

Systematic Design Method of Passive Ladder Filters using a Generalised Variable

Contact Info

Product

Resources

About