LDS-MID Datasheet, PDF (1/2 Pages) Molex Electronics Ltd. – Eliminating space and PCB real-estate constraints

Ceramic and LDS-MID GPS^†
Antenna
Eliminating space and PCB real-estate
constraints, LDS-MID and Ceramic GPS antennas
combine ease of integration with reduced cost
of implementation over a variety of wireless
navigation device applications
Features and Benefits
From left to right: RHCP*, Helix SMT LDS-MID and
RHCP Ceramic GPS Antennas
Silver Pin
Positions and fixes the antenna to the
PCB (via soldering); provides electrical
contact between antenna and board
Double-sided Adhesive Liner
Enables easy peel-and-stick
operations on PCB
Feeding Pad
(Double-sided
adhesive)
Secures the
antenna to
the PCB
Horizontal Plane of PCB
Helps ensure highest gain from the antenna. The patch antenna
achieves highest gain when placed horizontally on a surface facing
the z-axis since it can receive all propagated GPS signals. Lower gain
will be experienced if the patch antenna is mounted on a surface that
makes an angle with the horizontal.
RHCP SMT GPS Ceramic Antenna (Series 146168)
Fixing Pads
Firmly anchor antenna housing
onto SMT pad of PCB
Pick-and-place Feature
Speeds up automated placement
of antenna during assembly
Gold (Au) over Nickel (Ni) Traces
Act as transducers that convert
unguided electromagnetic waves to
guided electromagnetic waves and
vice versa
RHCP SMT GPS LDS-MID Antenna (Series 146216)
Laser Direct Structuring (LDS)-
formed Antenna Radiator
Yields high, consistent RF
performance, leveraging the excellent
laser structuring precision, speed,
accuracy and repeatability of LDS
technology
Halogen-free Molded Interconnect
Device (MID) Housing
Environmentally sustainable housing
material withstands high reflow
temperatures during assembly
processing
Feeding Pad
Connects to the radio
transceiver via a 50-
Ohm transmission line
on the PCB.
Electrical signals from
the transmission line
are fed through this
pad on the PCB
Helix SMT GPS LDS-MID Antenna (Series 146235)
*RHCP – An industry acronym for “Right Hand Circularly Polarized”.
†_{GPS - Global Positioning System. Civilian GPS uses the L1 frequency of 1575.42 MHz in the Ultra High Frequency (UHF) band spanning 300MHz to 3GHz}