An On-Chip Frequency-Reconfigurable Antenna For Q-Band Broadband Applications

Song, Yexi; Xu, Qinghe; Yin, Tian; Yang, Jie; Wu, Yunqiu; Tang, Xiaohu; Kang, Kai

doi:10.1109/lawp.2017.2709911

Cited by 27 publications

(13 citation statements)

References 11 publications

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“…A Q-band (Q-LINKPAN: 40.5 GHz -50.2 GHz) antenna in which frequency reconfiguration is achieved by two on-chip N-Type FET Switches is reported in [35]. As the substrate used is Silicon with high resistivity, gain of the antenna is improved.…”

Section: Fig 5 the Top And Bottom Surfaces Of The Antenna [33]mentioning

confidence: 99%

Electrical Reconfiguration Techniques for Frequency Agility in Patch Antennas

Cleetus*,

Bala

2019

IJITEE

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Wireless Systems are subjected to overwhelming advancements with the exponential demands in the field of Communication. This has led to the evolution of Reconfigurable antennas which gained enough significance as they are capable of modifying them.selves to different operating frequencies, patterns or polarizations. Out of these, Frequency Reconfigurable Antennas which can be operated at multi-frequency environment have been found to have a wide range of applications. The reconfiguration can be achieved using various switching mechanisms like, electrical, optical, etc. These are found to support various communication standards, ensure effective utilization of spectrum, reduce system complexity and hence cost. The recent researches on frequency reconfigurable antennas using electrical switches are analyzed in this paper based on their performances and a comparison on various switching techniques is presented.

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Section: Fig 5 the Top And Bottom Surfaces Of The Antenna [33]mentioning

confidence: 99%

Electrical Reconfiguration Techniques for Frequency Agility in Patch Antennas

Cleetus*,

Bala

2019

IJITEE

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“…Some studies have been done at 24 GHz [14,15], 28 GHz [16], 35 GHz [17], and 60 GHz [18]. Recently, the multiband, mm-wave, on-chip antennas have been also considered and discussed in literature [19][20][21]. In this paper, a multiband on-chip antenna for mm-wave BCNs is proposed with three frequency bands for data transfer and a fourth band for wireless powering module.…”

Section: Introductionmentioning

confidence: 99%

Multiband Dual-Meander Line Antenna for Body-Centric Networks’ Biomedical Applications by Using UMC 180 nm

Shawkey

Elsheakh

2020

Electronics

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A new, compact, on-chip antenna architecture for 5G body-centric networks’ (BCNs) applications is presented in this paper. The integrated antenna combines two turns of dual-meander lines (DML) on two stacked layers and a metal ground layer. The proposed DML antenna structure operated at resonant bands 22 GHz, 34 GHz, 44 GHz, and 58 GHz with an operating bandwidth up to 2 GHz at impedance bandwidth ≤−7.5 dB (VSWR—Voltage Standing Wave Ratio ≤ 2.5) and antenna gain about −20 dBi, −15 dBi, −10 dBi, and −1 dBi, respectively. Then it was compared with conventional single-meander line antenna. The proposed structure decreased the resonant frequency by 22%, increased number of tuning bands, and broadened the operating bandwidth by 25%, 15%, 10%, and 20% for the tuning bands to be a suitable choice for high-data -ate biomedical applications. Furthermore, the proposed antenna was simulated and studied for its performance on and inside the human body to test the integration effect in wearable equipment. The results showed that the antenna had acceptable performance in both locations. All simulations of the proposed antenna were done were done by using Ansys HFSS (high-frequency structure simulator) v.15 (Ansys, Canonsburg, PA, USA). The DML (Digital Microwave Links) antenna was fabricated by using UMC (United Microelectronics Corporation) 180 nm CMOS (Complementary Metal–Oxidesemi–Conductor) technology with a total area of 1150 µm × 200 µm and the results showed a good agreement between measured and simulated results.

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“…This kind of radiating element can be used for intra-chip communication, e.g., clock distribution and data communication, in order to alleviate the problems in global signal distribution and to reduce the number of I/O pins [5][6][7][8]. On the other hand, integrated transceivers with OCAs can be also used for free space communications, allowing the realization of fully embedded wireless systems [9][10][11], especially in the higher frequency bands [12]. Moreover, using an on-chip antenna in an integrated circuit reduces the overall size of the system, avoiding additional matching and interconnection losses [13], enhances its reliability, and drastically lowers the assembly costs by eliminating the need for external components and packaging.…”

Section: Introductionmentioning

confidence: 99%

“…The integrated loop antennas radiate sufficient power for a few meters' communication range. The OOK transmitted signal can be easily detected using a commercial receiver.2 of 12 device, communication is the most power consuming function, thus requiring low power and highly efficient transmitters [16][17][18].A few of the systems already presented in the state-of-art literature exploit different Integrated Circuit (IC) production technologies, such as SiGe BiCMOS [4] and silicon on insulator (SOI) CMOS [12] to boost the radiating properties of the substrate and of the devices, or more performing CMOS processes with higher transistor cutoff frequencies, thus requiring higher costs compared to the 0.35 µm CMOS process used in this work. Several studies presented different antenna topologies, such as single-ended circuit-to-antenna, as is the case for patch antennas [13], or differential feeding, as is the case for dipoles [3][4][5][6][7][8] or for the loop antenna used in this work and in [9].…”

mentioning

confidence: 99%

CMOS RF Transmitters with On-Chip Antenna for Passive RFID and IoT Nodes

2019

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The performances of two RF transmitters, monolithically integrated with their antennas on a single CMOS microchip fabricated in a standard 0.35 µm process, are presented. The usage of these architectures in the Internet of Things (IoT) paradigm is envisioned, as part of a custom conceived data transmission system. The implemented circuits use two different directly on-off keying (OOK) modulated oscillator topologies whose outputs are employed to feed two loop antennas. The powering of both transmitters is duty-cycled for reducing the average power consumption to a few tenths of a microwatt, allowing the usage as low-power transmitters for IoT nodes. The integrated loop antennas radiate sufficient power for a few meters' communication range. The OOK transmitted signal can be easily detected using a commercial receiver.2 of 12 device, communication is the most power consuming function, thus requiring low power and highly efficient transmitters [16][17][18].A few of the systems already presented in the state-of-art literature exploit different Integrated Circuit (IC) production technologies, such as SiGe BiCMOS [4] and silicon on insulator (SOI) CMOS [12] to boost the radiating properties of the substrate and of the devices, or more performing CMOS processes with higher transistor cutoff frequencies, thus requiring higher costs compared to the 0.35 µm CMOS process used in this work. Several studies presented different antenna topologies, such as single-ended circuit-to-antenna, as is the case for patch antennas [13], or differential feeding, as is the case for dipoles [3][4][5][6][7][8] or for the loop antenna used in this work and in [9]. In other cases, the antenna is micromachined after the IC fabrication [2,11,13], resulting in an increase in the realization cost of the single IC. The systems that can be found in literature exploit antennas, showing good performances at frequencies well above those used in this work (1.0-2.4 GHz) and in [16], but this is obtained at the expense of much more complex and costly fabrication processes and receiving apparatus.In each transmitter topology, the RF oscillator is the critical building block which mainly determines the overall performances of the transmitting architecture. LC oscillators offer high frequency stability over temperature, voltage, and process variations and low phase noise [19]. These characteristics allow the use of these oscillator architectures in gigahertz applications. Among the different LC circuits typologies, Colpitts oscillators and cross-coupled topologies are the most frequently implemented in CMOS technologies. In Colpitts oscillators, the loop voltage gain must be very high to sustain oscillation, especially when low quality factor integrated inductors are employed in the resonator tanks, which implies a higher power consumption with respect to cross-coupled architecture [20]. Finally, although ring oscillators (RO) have poor phase noise characteristics compared to LC oscillators, they have the advantages of a wider oscillation frequency range a...

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An On-Chip Frequency-Reconfigurable Antenna For Q-Band Broadband Applications

Cited by 27 publications

References 11 publications

Electrical Reconfiguration Techniques for Frequency Agility in Patch Antennas

Electrical Reconfiguration Techniques for Frequency Agility in Patch Antennas

Multiband Dual-Meander Line Antenna for Body-Centric Networks’ Biomedical Applications by Using UMC 180 nm

CMOS RF Transmitters with On-Chip Antenna for Passive RFID and IoT Nodes

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