August, 2019
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Integrated Passive Components Simplify Signal Conditioning in Small Packages
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guaranteed to pass its RF performance require- ments with FCC and ETSI and any other emission regulation.
Match-Filter Baluns A balun is an electrical device that converts
between a balanced (differential) and unbalanced
output — that connect to a single-ended antenna, the signal needs to be converted from differential to single-ended in a specific impedance ratio, most of the time these wireless RFICs have a nonstan- dard complex impedance which the IPC’s match for optimum power efficiency. Some baluns are also combined with a bandpass, low-pass, or high- pass filters.
development to simplify and speed up adoption of the chipset in the market. “The IPC is basically a plug-and-play solu-
tion,” explains Carmona. “By working with the leading chipset manufacturers, we have already completed the R&D to ensure it is optimized for that specific chip. Not only will it work, but it will comply with any emission requirements.”
Markets Because IPCs require much less board space,
smaller miniaturized devices with RF circuitry can be designed and smaller form-factor products cre- ated.
“With PCB real estate at a prime, the size
and placement of the passive components are crit- ical because as everything gets smaller it becomes increasingly difficult to place more components on the board,” explains Carmona. “Therefore, design engineers are looking to component manufacturers to deliver miniaturized solutions that occupy next to no real board space.” Beyond size, a smaller PCB can also impact
the aesthetics of a product, allowing for slim, low profiles. The elimination of components on a 10:1 or greater basis also reduces the overall weight of devices, even if that savings is measured in tenths of grams. These factors have major implications for
next generation smart wearables including rings, bracelets, shoes, jeans, shirts and other apparel, implantable medical devices, and portable elec- tronics. As it relates to greater reliability, Carmona
Illustration of an integrated passive component (IPC).
(single-ended) signal. The component can take many forms and may include devices that also transform impedances. Because many RF wireless chipsets have dif- ferential (two pins) outputs — an RF input and
To accomplish an impedance conjugate
match, Johanson Technology works with chipset OEMs to create a specific match-filter baluns with a matching part number for each chip. The collab- oration begins with reference designs during
says the automotive industry is already utilizing IPCs for on-board cellular, Wi-Fi, Bluetooth, satel- lite radio and GPS systems, as well as key fobs. As such, IPCs are designed to meet AEC-Q200 stan- dards. Contact: Johanson Dielectrics, 4001 Calle
Tecate, Camarilla, CA 93012 % 805-389-1166 E-mail:
antenna@johansondielectrics.com Web:
www.johansondielectrics.com r
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