Tunable SIW cavity backed active antenna oscillator

Giuppi, Francesco; Georgiadis, Apostolos; Collado, Ana; Bozzi, Maurizio; Perregrini, Luca

doi:10.1049/el.2010.0861

Cited by 70 publications

(38 citation statements)

References 6 publications

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“…SIW technology was chosen as a simple cost-effective fabrication process, which is already well-developed for printed circuit boards [4]. Furthermore, it allows easy integration of passive and active components onto the antenna [5], thus permitting the realization of complete systems on a textile carrier. An SIW cavity-backed slot antenna in textile materials was designed, fabricated and experimentally verified.…”

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confidence: 99%

Wearable textile antenna in substrate integrated waveguide technology

et al. 2012

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A novel wearable substrate integrated waveguide antenna fabricated entirely from textile materials is presented. The cavity-backed slot antenna operates in the 2.45 GHz industrial, scientific and medical band, for short range communication between rescue workers. A prototype of the antenna was fabricated and tested: good performance was obtained in terms of input matching and radiation pattern. Moreover, measurements performed on the antenna after bending and integration into clothing indicate high robustness against deformation and low influence of the human body on antenna performance, making the design well-suited for on-body use.Introduction: The design of wearable components and antennas for wireless applications received significant attention [1] in the past decade. In particular, localization and tracking of fire-fighters in rescue operations, as well as communication in critical conditions, require lowcost and efficient systems that are comfortable to wear. Therefore, components and systems should be low-profile, light-weight and mechanically flexible, and the adopted substrates need to be flame resistant and water repellent. The textile fabrics typically applied in firefighter garments represent good candidates for implementing antennas that are suitable for integration into protective garments. A variety of patch antennas on textile, operating in the 2.4-2.4835 GHz industrial, scientific and medical (ISM) band, were proposed [1]. These antennas require a sufficiently large ground plane to limit the influence of the human body on the antenna's radiation characteristics. In addition, antenna performance should remain stable when the textile patch is subjected to bending [2]. In this Letter, a textile cavity-backed slot antenna in substrate integrated waveguide (SIW) technology is presented. To the authors' best knowledge this is the first implementation of a microwave SIW structure with textile materials. Cavity-backed antennas offer several advantages, such as suppression of unwanted surface waves and lower sensitivity for on-body operation, as well as a high front-to-back ratio [3]. SIW technology was chosen as a simple cost-effective fabrication process, which is already well-developed for printed circuit boards [4]. Furthermore, it allows easy integration of passive and active components onto the antenna [5], thus permitting the realization of complete systems on a textile carrier. An SIW cavity-backed slot antenna in textile materials was designed, fabricated and experimentally verified. The structure exhibits compact size and good flexibility, thanks to the use of eyelets as metalized holes implementing the SIW cavity. On-body measurements were performed, and the effect of bending was investigated to evaluate the antenna performance under realistic operating conditions.

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confidence: 99%

Wearable textile antenna in substrate integrated waveguide technology

et al. 2012

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“…In recent years, the SIW has been studied and exploited to design the high performance planar resonators, for its low cost, low insertion loss, high Q factor, and compatible with the planar PCB process. Based on the SIW resonators, several low phase noise oscillators have been developed [1,2,3,4]. However, these SIW resonators are relatively large compared with the microstrip resonators.…”

Section: Introductionmentioning

confidence: 99%

Low phase noise oscillator based on quarter mode substrate integrated waveguide technique

Yang

Luo

Dong

et al. 2015

IEICE Electron. Express

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A low phase noise oscillator based on the quarter mode substrate integrated waveguide (QMSIW) technique is presented for the first time. The proposed oscillator is stabilized with the TE 101 mode of a QMSIW resonator, which is 25% the size of the substrate integrated waveguide (SIW) resonator. In order to obtain a high loaded quality factor, the coupling coefficient between the QMSIW cavity and microstrip is tuned to be undercoupled. A X-band Prototype has been designed and fabricated. By using the QMSIW resonator, the fabricated oscillator has a more compact size than the SIW counterpart. The measured results show that the oscillator has a phase noise of −98.5 dBc/Hz at 100 kHz at 9.03 GHz, and an output power of 5.04 dBm with a DC consumption of 20 mW.

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“…Apart from its basic role which is radiation, the antenna component in an AIA circuit can offer additional performances such as filtering, resonating, duplexing and etc.. Various active integrated antennas based on different configuration of the antenna or different combination of the radiator element with amplifiers, mixers, and oscillators have been presented in the literature [6][7][8][9][10][11][12][13][14][15][16]. Moreover, some of them have been proposed as transmitter-receiver (transceiver) units [17].…”

Section: Introductionmentioning

confidence: 99%

A New Design of Dual-Port Active Integrated Antenna for 2.4/5.2 GHZ Wlan Applications

Valizade¹,

Rezaei²,

Orouji³

2014

PIER B

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Abstract-A new design of dual-port monopole-slot-like microstrip active integrated antenna (AIA) is presented and discussed in this paper. The primary designed passive antenna is capable of supporting two different WLAN bands at 2.4-2.84 GHz and 5.15-5.35 GHz due to its dual-port structure. In order to reduce the transmission coefficient between the two ports of antenna a coupling sleeve-arm and an inverted T-shaped slot are utilized on the ground plane of antenna each beneath one of the corresponding feed-lines which act as filtering structures at desirable frequencies. The proposed passive dual-port antenna is integrated with a power amplifier (PA) and a low noise amplifier forming a dualport microstrip AIA which can be used as a full-duplex transceiver at its operating WLAN frequency bands. The measured results for both passive and active antennas show that the designed antennas have proper radiation characteristics at their desired operation frequencies. The fabricated passive antenna exhibits dual-band performance at 2-3.42 GHz and 4.5-5.6 GHz while the fabricated AIA covers 2.31-2.82 GHz (at PA port) and 4.45-5.5 GHz (at LNA Port) with 13 dB and 9 dB gain level improvement respectively.

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Tunable SIW cavity backed active antenna oscillator

Cited by 70 publications

References 6 publications

Wearable textile antenna in substrate integrated waveguide technology

Wearable textile antenna in substrate integrated waveguide technology

Low phase noise oscillator based on quarter mode substrate integrated waveguide technique

A New Design of Dual-Port Active Integrated Antenna for 2.4/5.2 GHZ Wlan Applications

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