Design and Fabrication of Band-Pass Filter on Glass IPD for 5G New Radio

Lee, Pao-Nan; Hsieh, Yu-Chang; Hsieh, Sheng-Chi; Kung, Cheng-Yuan; Wang, Chen-Chao

doi:10.1109/ectc32862.2020.00277

Cited by 17 publications

(9 citation statements)

References 5 publications

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“…To demonstrate the superiority of its design and materials, the article also tested the low-temperature cofired ceramic (LTCC) technology to draw corresponding data and conclusions. Both experiments were performed with filter design and simulation in the 3D electromagnetic simulation tool Ansys HFSS [9]. Table 3 shows the comparison between glass IPD and LTCC.…”

Section: Parametersmentioning

confidence: 99%

The Research on the Bandpass Filter for 5G N79 Band

Wu¹

2023

HSET

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With the continuous development of communication technology, 5G technology has gradually replaced the original 4G network and has been applied to all walks of life with its advantages of faster connection speed, lower delay, and larger capacity. The RF front-end market has also benefited from the prosperity of 5G, and filters are the most significant business segment in the RF front-end market. Filters are widely used in the 5G network technology hardware because it can significantly ensure the signal's integrity. The shield stripline bandpass filter and the high-resistance silicon-based bandpass filter using, which use Integrated passive devices (IPD) technology, are two ordinary filters on the market. This article will briefly outline the structure and performance of the two filters and use the comparison method to compare the advantages and disadvantages of the two filters. Finally, some reasonable solutions are proposed for improvement, such as adding a defective ground structure to the strip linear filter to reduce the insertion loss, replacing the material of the IPD filter with glass, and using active components instead of IPD to make the filter.

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Section: Parametersmentioning

confidence: 99%

The Research on the Bandpass Filter for 5G N79 Band

Wu¹

2023

HSET

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“…Other technologies such as low-temperature co-fired ceramic (LTCC), high-temperature co-fired ceramic (HTCC), high-temperature superconductors (HTS), integrated passive device (IPD) and reconfigurable/tunable and acoustic structures can also be deployed for the 5G systems [27][28][29][30][31][32][33][34][35][36][37]. Some of these techniques aim to reduce the overall size of the BPF components, and obtain good filtering performance [27][28][29][30]. While the size of the system can be reduced, the filters designed by these processes still have poor roll-off and relatively high insertion losses.…”

Section: Introductionmentioning

confidence: 99%

“…While the size of the system can be reduced, the filters designed by these processes still have poor roll-off and relatively high insertion losses. In contrast, the IPD technologies based on substrates such as silicon, GaAs (Gallium Arsenide) and glass can deliver better properties for microwave devices in current and future 5G wireless communication systems [27,28].…”

Section: Introductionmentioning

confidence: 99%

A Low-Cost Microwave Filter with Improved Passband and Stopband Characteristics Using Stub Loaded Multiple Mode Resonator for 5G Mid-Band Applications

et al. 2021

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This paper presents the design and implementation of a printed circuit microwave band-pass filter for 5G mid-band applications, using a Stub Loaded Multiple Mode Resonator (SL-MMR) technique. The objective of this article is to introduce a low-cost microstrip filter with improved passband and stopband characteristics, based on a mathematical analysis of stub loaded resonators. The filter cost is reduced by selecting the low-cost FR4 dielectric material as a substrate for the proposed filter. Based on the transmission line model of the filter, mathematical expressions are derived to predict the odd-mode and the even-mode resonant frequencies of the SL-MMR. The mathematical model also highlights the capability of controlling the position of the SL-MMR resonant frequencies, so that the 5G sub-band that extends along the range (3.7–4.2 GHz) can perfectly be covered with almost a flat passband. At the resonance frequency, a fractional bandwidth of 12.8% (500 MHz impedance bandwidth) has been obtained with a return loss of more than 18 dB and an insertion loss of less than 2.5 dB over the targeted bandwidth. Furthermore, a pair of parasitic elements is attached to the proposed filter to create an additional transmission zero in the lower stopband of the filter to enhance the suppression of the filter stopband. The measured and simulation results are well agreed, and both reveal the acceptable performance of the stopband and passband characteristics of the filter.

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“…16,17 Unfortunately, they cannot meet the miniaturization requirement of frontend circuits. Nowadays, 5G wideband filters rely mainly on low-temperature co-fired ceramics (LTCC) 18 and integrated passive devices (IPD) 19,20 technologies. However, LTCC and IPD filters have large size and poor IL performance compared with BAW filters.…”

Section: Introductionmentioning

confidence: 99%

A novel wideband multi‐mode coupled resonator filter based on bulk acoustic wave technology

Xie

et al. 2021

Int J RF Mic Comp-Aid Eng

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This paper proposes a novel multi-mode bulk acoustic wave (BAW) coupled resonator filter (CRF) for wideband applications. Three stepped-impedance coupling layers of CRF are used to generate multi-mode properties, and external inductors are added for port match. To facilitate the calculation of resonance frequencies, a simplified Mason model is derived and applied in the even-and odd-mode analysis of CRF. Based on different acoustical length of CRF coupling layers, four cases that are applicable for different filter bandwidth are proposed. From these cases, fractional bandwidth (FBW) of the multi-mode CRF can be realized in a wide range from 12.8% to 33% when the coupling layers adopt the commonly used SiO 2 /Mo/SiO 2 materials. Moreover, the tuning range of FBW can be further enlarged by changing the materials of coupling layers. To verify the proposed multi-mode CRF, a triple-mode n77 band filter with center frequency of 3.723 GHz and FBW of 24.2%, and a penta-mode filter with a larger FBW up to 33% are designed and simulated.Simulation results of the original Mason model, the simplified Mason model, and the three-dimensional (3D) model based on the finite element method are consistent well with each other.

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Design and Fabrication of Band-Pass Filter on Glass IPD for 5G New Radio

Cited by 17 publications

References 5 publications

The Research on the Bandpass Filter for 5G N79 Band

The Research on the Bandpass Filter for 5G N79 Band

A Low-Cost Microwave Filter with Improved Passband and Stopband Characteristics Using Stub Loaded Multiple Mode Resonator for 5G Mid-Band Applications

A novel wideband multi‐mode coupled resonator filter based on bulk acoustic wave technology

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