60 GHz compact integrated cross-coupled SIR-MH bandpass filter on bulk CMOS

Yang, Bo; Skafidas, Efstratios; Evans, R.J.

doi:10.1049/el:20080599

Cited by 11 publications

(7 citation statements)

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“…When the cross coupling path is out of phase with the main path coupling, a pair of transmission zeros can be created at the skirt of the passband to improve frequency selectivity. Numerous studies have emphasized the improvement of cross-coupled filters [4][5][6][7][8][9][10][11][12][13][14][15]17] and direct-coupled filters [16,18]. In one investigation [4], the hightemperature superconductor films were used to design fourth-order open-loop filters with low insertion loss.…”

mentioning

confidence: 99%

“…A cross-coupled dual-band filter with four equal length split-ring resonators was designed in [9] for size reduction. In [10], the stepped-impedance open-loop resonator on CMOS fabrication was adopted to realize filters; the center frequency can rise up to 58-66.5 GHz, though with a large insertion loss of 5.9 dB. Most of the aforementioned approaches are presented in low-frequency bands, and less are in Ka-bands due to the difficulty of achieving high frequency.…”

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confidence: 99%

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LTCC Vertically-Stacked Cross-Coupled Bandpass Filter for LMDS Band Applications

Chin¹,

Chen²,

Chang³

2011

PIER C

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This study develops a compact 28 GHz bandpass filter on a low-temperature co-fired ceramic substrate for applications in LMDS (Local Multipoint Distribution Service) bands. The filter comprises two pairs of verticallystacked cross-coupled open loops with vertical interconnection structures, achieving compactness, high integration, and superior frequency selectivity. Attaining selective response with two transmission zeros requires adjusting the couplings of adjacent resonators and external quality factor. The open loops are fed by using the three-via vertical interconnections to prevent any electrical effect on the filter. Measurements correlate closely with the simulation results: this study achieved a bandwidth of 2.1 GHz (27.6-29.7 GHz) with two zeros located at 25.8 GHz and 31.1 GHz, and a compact size of 2.69 × 2.66 × 0.4 mm 3 .

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confidence: 99%

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confidence: 99%

LTCC Vertically-Stacked Cross-Coupled Bandpass Filter for LMDS Band Applications

Chin¹,

Chen²,

Chang³

2011

PIER C

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“…Various resonators are utilized to construct the CMOS BPFs for size reduction and performance improvement. Open loop resonators, parallel line resonators, step impedance resonators, and ring resonator are employed to realize the millimeter wave BPFs. Furthermore, dual‐mode BPF is fabricated on 0.18 μm CMOS technology to obtain wide bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Coupling modeling and bandpass filter design using electric and magnetic couplings on CMOS 65 nm technology

Mou¹,

2020

Micro & Optical Tech Letters

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This letter presents the electric and magnetic couplings modeling on CMOS 65 nm technology. It is based on the simplified equivalent substrate model. The field distribution is studied to analyze qualitatively the electric and magnetic couplings. Based on CMOS 65 nm technology, the coupling coefficients with and without passivation are calculated quantitatively for comparisons and then the coupling characteristics are summarized. In order to demonstrate the coupling model, a bandpass filter using electric and magnetic couplings is designed. The measured bandwidth is 23 GHz centered at 63.5 GHz and the insertion loss is 3.8 dB. Good agreement between the simulated and measured results validates the coupling modeling. K E Y W O R D Sbandpass filter (BPF), CMOS 65 nm technology, coupling coefficient, electric and magnetic couplings 1 | INTRODUCTION CMOS technology has been widely applied in the past few years in the radio frequency applications because of its high system integration. When the passive components, such as filters and transformers are designed by using CMOS technology, coupling is a dominant factor to influence the performance, and the electric and magnetic couplings 1,2 should be carefully studied.In the past decades, the substrate modeling of integrated circuit technology has been studied extensively. It helps the designers for simulating microwave circuits. Also, the simplified modeling saves computing time in the full wave simulation. A coplanar waveguide and its discontinuities have been modeled on SOI CMOS technology. 3 The matching network of the power amplifier (PA) is simulated based on the equivalent CMOS substrate, 4 and the measured results of the PA agree with the post simulation.Based on the substrate modeling, the bandpass filter (BPF) design becomes a popular research topic because of its indispensable characteristic of frequency selectivity. Consideration of resonators and their couplings are crucial in filter design. 5 Various resonators are utilized to construct the CMOS BPFs for size reduction and performance improvement. Open loop resonators, 6 parallel line resonators, 7 step impedance resonators, 8 and ring resonator 9 are employed to realize the millimeter wave BPFs. Furthermore, dual-mode BPF 10 is fabricated on 0.18 μm CMOS technology to obtain wide bandwidth. As for the coupling scheme, it has been widely studied on PCB process to obtain the proper coupling strength in filter design. 11,12 However, coupling is seldom discussed in the CMOS technology.In this paper, the modeling of the electric and magnetic couplings on CMOS 65 nm technology has been built. The coupling scheme of transmission lines is analyzed based on the multi-layer technology. Meanwhile, the comparisons of electric and magnetic coupling strengths between quarter-wavelength resonators with and without passivation are studied. This coupling model and the independence between the electric and magnetic couplings found in this paper can be applied to the design of various components, such as BPF, diplexer, and cou...

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“…A photograph of the manufactured prototype is shown in each graph inside the blue-marked inset. a) Microstrip CMOS filter of [968]; b) Microstrip BiCMOS filter of [969]; c) LTCC Stripline filter of [970]; d) LTCC cavity filter of [973]; e) LTCC cavity filter of [974]; f) LTCC cavity filter of [975].…”

Section: Results In the Context Of V-band Nbfs State Of The Artmentioning

confidence: 99%

“…In this way, the presented design could find a good niche of application in several mmwave communication systems. Second, the state of the art in the topic of V-band narrow-band filters clearly reveals that, at V-band, filter design becomes quite more challenging that at Ka-band, being that, in several novel proposed topologies for the V-band, experimental results rarely meet the specifications [365], [853], [968]- [970]. In addition, rectangular waveguide NBFs at V-band are not offered by most of the commercial houses (see for instance catalogs of Pasternack [965] or A-INFO [966]).…”

Section: Design 2:mentioning

confidence: 99%

Analysis and design of efficient passive components for the millimeter-wave and THz bands

Verdú¹,

Antonio²

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To my parents, brother and sister."Success is peace of mind which is a direct result of self-satisfaction in knowing you made the effort to become the best of which you are capable."Jonh Wooden "Lo que con mucho trabajo se adquiere, más se ama." Aristóteles AgradecimientosLa realización de esta tesis ha implicado no pocos años de trabajo y esfuerzo. Durante este importante periodo de mi vida han sido muchas las personas han estado a mi lado, brindándome su apoyo, ayuda, cariño y amor. Ya sea de una forma u otra, todas estas personas han contribuido a que este trabajo haya sido posible dando como fruto esta tesis. A todos ellos, me gustaría dedicarles un agradecimiento muy especial de todo corazón.Sin duda alguna, debo dar las gracias en primer lugar a mi director de tesis Mariano Baquero. Mariano, has sido un padre para mí profesionalmente hablando. Te conocí como alumno en las clases de Microondas, en las cuales me abriste la puerta a un conocimiento que me fascinó.Recuerdo perfectamente cuando fui a verte para preguntarte si podrías dirigirme el Proyecto Final de Carrera, y desde ese año 2009 hemos estado trabajando juntos. Quiero agradecerte no sólo haberme dado la oportunidad de trabajar en cada momento en elárea que más me ha gustado, sino el haberte preocupado por mí a nivel personal, velando siempre por mis intereses, ayudándome a desarrollarme personal y profesionalmente. Extiendo en este sentido mi agradecimiento a Miguel Ferrando. Si Mariano es el padre, tu serías sin duda el abuelo. Sin tu ayuda, la beca para la realización de esta tesis y los proyectos que han respaldado la misma no hubieran sido posibles. Tu esfuerzo ha permitido que el Grupo de Radiación Electromagnética (GRE) esté hoy dónde esta y que sus miembros nos beneficiemos de un entorno de trabajo excelente, produciendo trabajo de calidad. Debo agradecerte también tus siempre innovadoras ideas, algunas de las cuales se han convertido en una realidad plasmada en esta tesis.Una mención especial merece Daniel Sánchez. Dani, aunque tu nombre no figure como co-director bien sabes que podría estarlo. Jamás podré agradecerte lo suficiente la ayuda que me has prestado. Cuántas horas dedicadas a enseñarme en un sin fin de aspectos sin esperar nada a cambio, apoyándome también en los momentos difíciles, siempre presentes en una tesis. Bien sabes que lo mismo has hecho con cada uno tus compañeros, por eso eres el pilar del GRE Dani.Otra persona a la que estoy muy agradecido es a Vicente Boria. Tu activa colaboración en la dirección de esta tesis ha sido indispensable para la consecución de los resultados más relevantes de la misma. Sugeriste muy acertadamente una estancia en la Queen's University of Belfast, y me abriste la puerta a nuevas líneas de investigación en las cuales seguimos trabajando actualmente. Gracias por preocuparte por mi a nivel profesional y personal.En elámbito anterior, extiendo los agradecimientos a todo el GRE. It is also very important for me to acknowledge Prof. Vince Fusco. Thank you for hosting me in your group in Belfast ...

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60 GHz compact integrated cross-coupled SIR-MH bandpass filter on bulk CMOS

Cited by 11 publications

References 6 publications

LTCC Vertically-Stacked Cross-Coupled Bandpass Filter for LMDS Band Applications

LTCC Vertically-Stacked Cross-Coupled Bandpass Filter for LMDS Band Applications

Coupling modeling and bandpass filter design using electric and magnetic couplings on CMOS 65 nm technology

Analysis and design of efficient passive components for the millimeter-wave and THz bands

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