60‐GHz amplitude shift‐keying transceiver LTCC system‐on‐package module

Lee, Young Chul

doi:10.1002/mop.27264

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…For proper working of the proposed system RF module works by Amplitude shift Keying (ASK) which is an advanced digital method addresses sequential paired information in the sufficiency of a transporter wave has also been reported by Al Safi and Bazuin [20] and Lee [21] Here the simple sign addresses as alphabetic letters like a, b and so on, are ship off the receiver. An embedded adjustment strategy that sends transmission information by fluctuating the presence/ non appearance of analog signals.…”

Section: Resultsmentioning

confidence: 99%

Development of Wireless Technique to Regulate Seed Dropping in a Seeder for Intercropping

Harshavardhan¹,

Sivakumar²,

Gunasekar

et al. 2021

CJAST

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Although intercropping gives additional yield per unit area than sole cropping, yield may also decrease as the crops differ in their competitive abilities. To avoid competition and to accompany complimentary action between the base crop and inter crop in intercropping practise, proper crop ratio of two crops should be maintained. When sowing with available seeders crop ratio was not maintained because of non-availability of a seed hopper, handling two different varieties of seeds and the un controlled seed flow from the hopper to the seed tube when ground wheel is rotating. To look after this problem an experiment was conducted at DFMPE, AEC & RI, Tamil Nadu Agricultural University, Kumulur by fabricating a seed hopper consisting of two compartments and circular shaped outlet for two variety of seeds and developing an RF (radio frequency) wireless technology to control servo motor in order to restrict the seed drop from seed hopper to the seed tube even though ground wheel is in running condition. In this paper considering a seven-row seeder, the performance of a micro controller coded with appropriate programme in embedded C language which can regulate seven servo motors each at seven seed hoppers, functioning of RF transmitter sketch, functioning of RF receiver sketch, header issue & its solution, angle conversion of servo shaft and power consumption was observed and discussed. Total power required for operating RF electronic setup containing seven servomotors was recorded as 5 V 12 A. The angle of rotation of servo motor shaft was from 0º to 165º when pulse width range in micro controller was set from 0 and 2400 micro seconds. The servo did not respond in the hardware interfacing because both the libraries use timer 1 interrupt which created an error issue. In order to overcome that “Servo timer 2.h” header was issued instead of servo.h. Then sketch was compiled and was executed successfully.

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Section: Resultsmentioning

confidence: 99%

Development of Wireless Technique to Regulate Seed Dropping in a Seeder for Intercropping

Harshavardhan¹,

Sivakumar²,

Gunasekar

et al. 2021

CJAST

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“…In this chapter, a typical heterodyne 61 GHz transmitter (Tx) and a highly integrated 60 GHz amplitude shift-keying (ASK) transceiver (TRx) SiP module are presented in detail [29][30][31]. They have been designed and implemented by using the key technologies such as suppression unwanted resonant modes, low-loss vertical transitions and compact passive devices presented in the previous chapters.…”

Section: Compact Ltcc Sip Modules For V-band Applicationsmentioning

confidence: 99%

LTCC-Based System-in-Package (SiP) Technology for Microwave System Integration

Lee¹

2017

Microwave Systems and Applications

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Monolithic low-temperature co-fired ceramic (LTCC) SiP modules have been presented for microwave applications. In order to integrate almost passive circuits of a radio system into the LTCC substrate, key technologies such as suppressing parasitic resonant modes, low-loss transitions and compact passive devices have been investigated. Well analyzed mechanisms on the parasitic resonant modes and their suppressing methods have been applied to high-isolation SiP structures. A strip line (SL) to CPW vertical transition using a stepped via structure embedding air cavities has been devised and has been used to design a SL BPF. A surface mount technology (SMT) pad transition has been developed by utilizing a modified coaxial line. A LPF composed of vertical plate capacitors and helical inductors and a 2 × 2 array antenna have been developed. A 61 GHz heterodyne transmitter LTCC SiP module has been implemented by monolithically embedding all passive circuits such as a SL BPF, 2 × 2 array antenna, SMT pads and feeding lines into it. A 60 GHz amplitude shift-keying (ASK) transceiver LTCC SiP module has been implemented as small as 17.8 × 17.9 × 0.6 mm 3 by integrating a high-isolation via fence and a LPF. They have been characterized in terms of an output power, spectrum and link test.

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