Polymer-based micromachined rectangular coaxial filters for millimeter-wave applications

Jaimes-Vera, Aline; Llamas-Garro, Ignacio; Ke, Maolong; Wang, Yi; Lancaster, M.J.; Pradell, L.

doi:10.1017/s1759078711000079

Cited by 5 publications

(7 citation statements)

References 13 publications

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“…In Ref. [5], a transition from RMCL to CPW was proposed, achieving GSG ports up to 70 GHz for on‐chip testing with a simpler 5‐layer structure. Similarly, Ref.…”

Section: Introductionmentioning

confidence: 99%

A non‐50 Ω‐RMCL transition designed for on‐chip measurement in the 0–170 GHz frequency range

Yuan,

Sun,

Tang

et al. 2023

IET Microwaves Antenna & Prop

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The authors present the design of a rectangular micro‐coaxial line (RMCL) to ground‐to‐ground (GSG) probe pad transition for broadband millimetre‐wave (mmW) probe testing. The proposed transition is designed to effectively operate across the frequency range from DC to 170 GHz, providing the capability to convert non‐50 Ω RMCL ports to 50 Ω GSG ports. To validate the design methodology, the back‐to‐back model of the transition is fabricated and experimentally characterised. The fabricated transition exhibits a remarkable return loss exceeding 18 dB, along with an insertion loss below 0.4 dB within the frequency span of 0–75 GHz. With this transition, on‐chip measurement of non‐50 Ω ultra‐wideband millimetre‐wave chips becomes feasible.

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“…In Ref. [5], a transition from RMCL to CPW was proposed, achieving GSG ports up to 70 GHz for on‐chip testing with a simpler 5‐layer structure. Similarly, Ref.…”

Section: Introductionmentioning

confidence: 99%

A non‐50 Ω‐RMCL transition designed for on‐chip measurement in the 0–170 GHz frequency range

Yuan,

Sun,

Tang

et al. 2023

IET Microwaves Antenna & Prop

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“…Ka-band SIW BPFs are also reported in [8]- [11] using dielectric-filled [9], [11] and airfilled [8] SIWs. 3-D high-quality factor (Q) air-filled BPFs using SU-8 coaxial resonators and silicon-based resonators are discussed in [12]- [14] having low levels of IL between 0.5 and 0.8 dB, however, they are large in size and cannot be easily integrated with other IC components.…”

Section: Introductionmentioning

confidence: 99%

Glass-Based Bandpass Filters for New Radio (NR) K-/Ka-Band Communications

Psychogiou

Ashley

2022

IEEE Trans. Compon., Packag. Manufact. Technol.

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Highly miniaturized substrate integrated coaxial (SIC) bandpass filters (BPFs) are presented for new radio (NR) communications. They are based on glass-integrated two-post SIC resonators and mixed electromagnetic (EM) couplings that contribute to two poles and one transmission zero (TZ) to the overall BPF transfer function. The concept can be extended to high-order quasi-elliptic configurations shaped by 2N poles and N TZs by readily cascading N two-post SIC cavities through inter-stage transmission lines (TLs). A high-frequency glassbased integration platform is explored as a low-loss and high-frequency integration mechanism. To practically validate the concept, three glassintegrated BPF prototypes were designed, manufactured, and tested. They include a: 1) two-pole/one-TZ BPF with a passband centered at 26 GHz, fractional bandwidth (FBW) of 21%, and a TZ at 32 GHz; 2) twopole/one-TZ BPF with a passband centered at 26.7 GHz, FBW of 11%, and a TZ at 23.6 GHz; and 3) a four-pole/two-TZ BPF with a passband centered at 26.7 GHz, FBW of 11%, and two TZs at 24 and 31.3 GHz.

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“…The CPW interface can also be used to interconnect the polymer based circuits with other components. This paper presents the design of a SU-8 coaxial filter at 42 GHz, and includes further comprehensive simulation results, additional design details and a discussion of the fabrication process flow compared to recently published work [3].…”

Section: Introductionmentioning

confidence: 99%

U-band micromachined coaxial filter

Jaimes-Vera

Llamas-Garro

et al. 2011

2011 IEEE MTT-S International Microwave Workshop Series on Millimeter Wave Integration Technologies

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This paper presents a micromachined filter for millimeter-wave applications operating at U-band. The structure was designed using a rectangular coaxial line with the center conductor suspended in air. The rectangular coaxial cables have been optimized to provide a low attenuation constant. The design includes a coplanar waveguide (CPW)-to-coaxial transition to interface the device with other components, or coplanar probes for measurements. The filter has been designed with a center frequency of 42 GHz and a 10% fractional bandwidth. A measured insertion loss of 0.77 dB has been obtained. This structure involves a low-cost micromachining manufacturing process using SU-8 photo resist which is very attractive for the implementation of integrated millimeter wave subsystems.

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Polymer-based micromachined rectangular coaxial filters for millimeter-wave applications

Cited by 5 publications

References 13 publications

A non‐50 Ω‐RMCL transition designed for on‐chip measurement in the 0–170 GHz frequency range

A non‐50 Ω‐RMCL transition designed for on‐chip measurement in the 0–170 GHz frequency range

Glass-Based Bandpass Filters for New Radio (NR) K-/Ka-Band Communications

U-band micromachined coaxial filter

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