User Manual

High-Flying
HF-LPT200 Low Power WiFi Module User Manual
Shanghai High-Flying Electronics Technology Co., Ltd(www.hi-flying.com) - 14 -
1.2.4. On-board Chip Antenna
HF-LPT200 module support internal on-board chip antenna option. When customer select internal
antenna, you shall comply with following antenna design rules and module location suggestions:
 For customer PCB, RED color region (8.3x18.4mm) can’t put componet or paste GND net;
 Antenna must away from metal or high components at least 10mm;
 Antenna can’t be shieldedby any meal enclosure; All cover, include plastic, shall away from
antenna at least 10mm;
Figure 5. Suggested Module Placement Region
High-Flying suggest HF-LPT200 module better locate in following region at customer board, which to
reduce the effect to antenna and wireless signal, and better consult High-Flying technical people when
you structure your module placement and PCB layout.
1.2.5. External Antenna
HF-LPT200 module supports internal antenna and external antenna(I-PEX or SMA) option for user
dedicated application.
If user select external antenna, HF-LPT200 modules must be connected to the 2.4G antenna
according to IEEE 802.11b/g/n standards.
The antenna parameters required as follows:
Table 3 HF-LPT200 External Antenna Parameters
1.2.6. Evaluation Kit
High-Flying provides the evaluation kit to promote user to familiar the product and develop the detailed
application. The evaluation kit shown as below, user can connect to HF-LPT200 module with the RS-
232 UART, USB (Internal USB to UART convetor) or Wireless interface to configure the parameters,
manage the module or do the some functional tests.
Item
Parameters
Frequency range
2.4~2.5GHz
Impedance
50 Ohm
VSWR
2 (Max)
Return Loss
-10dB (Max)
Connector Type
I-PEX or populate directly