Miniaturized broadband monopole antenna in 130nm CMOS with gain improvement

Wu, Lei; Huang, Jiawei; Sun, Bing; Chang, Hudong; Huang, Sen; Liu, Honggang

doi:10.1587/elex.19.20220076

Cited by 3 publications

(8 citation statements)

References 28 publications

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“…The process, frequency, bandwidth, gain, efficiency, and size used in each document are listed in the table. Compared with the chip antenna design proposed in this article, it can be seen that the bandwidth is better than that of the references [18][19][20][21][22][23][24][25][26][27]. In terms of gain, it is better than references [18,20,22,23].…”

Section: Discussionmentioning

confidence: 74%

“…Inventions 2023, 8, x FOR PEER REVIEW 3 of 13 [27] analyzed the angle of the grid to optimize impedance matching, and proposed a miniaturized broadband monopole antenna for the W-band. Additionally, the capacitance effect between the sixth layer of metal and the first layer of metal was utilized to achieve broadband, with an antenna bandwidth of 31.5%.…”

Section: Methodsmentioning

confidence: 99%

“…In recent years, there has been extensive research in the field of millimeter wave chips, with different orientations and implementations. For example, resonance analysis [18][19][20][21], the introduction of artificial magnetic conductors [22,23], the design of integration with printed circuit boards [24,25], the design of integrated circuits [26], and miniaturization [27]. The influence of the number of twists and turns of a monopole antenna on the operating frequency is shown through simulation results.…”

Section: Introductionmentioning

confidence: 99%

“…Switching circuits can increase the operating mode of chip antennas and improve bandwidth performance. By using a hexagonal grid structure to reduce the size, [27] analyzed the angle of the grid to optimize impedance matching, and proposed a miniaturized broadband monopole antenna for the W-band. Additionally, the capacitance effect between the sixth layer of metal and the first layer of metal was utilized to achieve broadband, with an antenna bandwidth of 31.5%.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Designed on 0.18 μm CMOS Process Small Size Broadband Millimeter Wave Chip Antenna

Chung

Huang

2023

Inventions

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This paper proposes a small-size broadband triangular monopole chip antenna for millimeter wave band applications. Process using 0.18 μm CMOS process and antenna design using Met-al_6. Triangular patch design and feed line length analysis to achieve a better reflection coefficient and also dig three circular slots at the grounding point to achieve better impedance matching. The operating frequency of the chip antenna is 62–100 GHz below the reflection coefficient −10 dB standard, with a fractional bandwidth of 54%. The maximum gain is −0.4 dBi at 64 GHz. The efficiency is 40.9%. The overall chip size is 1.2 × 1.2 (mm2). After measurement and verification, the proposed antenna reflection coefficient is similar to the simulation trend and has better resonance. The chip antenna frequency range proposed in this article covers the 5G NR FR2 frequency band. The proposed chip antenna can be applied in related fields such as the Internet of Things, Industry 4.0, and biomedical electronics.

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Section: Discussionmentioning

confidence: 74%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Designed on 0.18 μm CMOS Process Small Size Broadband Millimeter Wave Chip Antenna

Chung

Huang

2023

Inventions

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“…Nowadays, the on-chip antenna and antenna-in-package (AiP) can be used to realize the phased array antenna [8]. Despite the advantage of high integration level and low interconnect loss, the on-chip antenna suffers from low gain and efficiency issues due to the substrate loss [9,10,11,12]. Moreover, because of the relative large size of the phased array transceiver, it is very difficult to realize the 2-D phased array system with half wavelength spacing by using the onchip antenna, increasing the chip area and reducing the antenna scanning angle range.…”

Section: Introductionmentioning

confidence: 99%

Effects of underfill on wideband flip-chip packaging for 5G millimeter-wave applications

Xia

Zhang

Liu

et al. 2023

IEICE Electron. Express

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This letter investigates the effects of the underfill on the wideband flip-chip packaging for 5G millimeter-wave (mm-Wave) applications. For accurate interconnect design, a new hybrid equivalent circuit model is proposed. Targeting at the phased array systems with high density I/Os, a compact anti-pad structure is implemented and co-designed with the high impedance transmission line and the low-cost 90 μm solder balls, compensating the flip-chip capacitive parasitics and realizing the compact low-loss interconnect. To evaluate the underfill effect on the interconnect parasitics, both theoretical analyses and simulations are undertaken. For demonstration, by using a glass substrate with the fan-out process, back-toback flip-chip packaging structures are designed, fabricated, and measured. Measured results demonstrate that with and without underfill U8410-99 the interconnect return loss is better than 20 and 10 dB from DC to 90 GHz, with an insertion loss of 0.2 and 0.45dB at 60GHz, respectively.

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A 0.18 μm CMOS Millimeter Wave Antenna-on-Chip with Artificial Magnetic Conductor Design

et al. 2023

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This paper presents a small-size broadband slot monopole chip antenna for millimeter wave application. Using a 0.18 μm CMOS process, through metal_1, the artificial magnetic conductor (AMC) of the metal layer increased the impedance bandwidth of the chip antenna. The additional inverted C branch was used to achieve a better reflection coefficient. By adding an AMC and inverted C branch, the operating frequency of the chip antenna went to 33.8–110 GHz below the reflection coefficient of −10 dB, and its fractional bandwidth was 103.4%. The maximum gain was −6.3 dBi at 72 GHz. The overall chip size was 1.2 × 1.2 (mm2). Through measurement and verification, the proposed antenna reflection coefficient was close to the simulation trend and had better resonance. The frequency range of the chip antenna proposed in this paper covered the 5G NR FR2 band (24.2 GHz–52.6 GHz) and W-band (75 GHz–110 GHz). The proposed chip antenna can be applied to the Internet of Things, Industry 4.0, biomedical electronics, near field sensing and other related fields.

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Miniaturized broadband monopole antenna in 130nm CMOS with gain improvement

Cited by 3 publications

References 28 publications

Designed on 0.18 μm CMOS Process Small Size Broadband Millimeter Wave Chip Antenna

Designed on 0.18 μm CMOS Process Small Size Broadband Millimeter Wave Chip Antenna

Effects of underfill on wideband flip-chip packaging for 5G millimeter-wave applications

A 0.18 μm CMOS Millimeter Wave Antenna-on-Chip with Artificial Magnetic Conductor Design

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