JODY-W2 Antenna reference design Application Note Abstract This application note describes the test set-up used in JODY-W2 module certification. www.u-blox.
JODY-W2 - Application Note Document Information Title JODY-W2 Subtitle Antenna reference design Document type Application Note Document number UBX-20053581 Revision and date TBD TBD Disclosure Restriction This document applies to the following products: Product name JODY-W2 series u-blox or third parties may hold intellectual property rights in the products, names, logos and designs included in this document.
JODY-W2 - Application Note Contents Document Information ................................................................................................................................ 2 Contents .......................................................................................................................................................... 3 1 Scope ....................................................................................................................................................
JODY-W2 - Application Note 1 Scope This document defines the essential specifications necessary to implement the JODY-W2 antenna reference designs as used in certification. It is part of the equipment certification application issued to FCC and ISED. The information contained herein and its references should be sufficient to guide a skilled person to implement the design on a host carrier. It will provide the designer with PCB layout details and expected performance specifications.
JODY-W2 - Application Note 3 Reference design of RF path JODY-W2 is certified with a set-up including JODY-W2 module board with it’s RF paths connected to the carrier board with RF coaxial cables. The antennas are connected to the carrier board through SMA connectors. Below are the relevant components listed. Module board including U.FL connectors with JODY-W2 mounted. Carrier board including U.FL connectors to interface the module board and SMA connectors to connect antennas.
JODY-W2 - Application Note equipment are connected. Figure 3 and Table 3 shows the design stack-up including dimensions of the 50 Ω coplanar microstrips implemented. Regarding the coplanar microstrips the ground planes beside the signal trace are connected to the inner layer ground plane using vias. The vias are placed with a maximum distance of 0.5 mm to the coplanar ground edge and a maximum pitch of 2 mm. The top layer is coated with generic LPI solder stop mask.
JODY-W2 - Application Note Figure 4. Module board Antenna micro strip implementation. Figure 5. Component selection for RF matching network on module board using 0 ohm series resistor. The carrier board RF traces includes pi network matching components and are routed as coplanar microstrips. Here 10 pF capacitors in series are implemented.
JODY-W2 - Application Note Figure 6. Carrier board Antenna micro strip implementation. Figure 7. Component selection for RF matching network on carrier board using 10 pF series capacitors.
JODY-W2 - Application Note Evaluation board (EVB) Evaluation board for JODY-W263 series modules. The board includes SMA antenna connectors that connect to external antennas for Wi-Fi and Bluetooth. It has two internal dual-band WiFi/Bluetooth antennas. External Antennas (2) 1 x dual band Wi-Fi/Bluetooth antenna, Linx Technologies ANT-DB1-RAF-SMA Coax RF cable U.
JODY-W2 - Application Note Revision history Revision Date Name Comments R01 TBD lber Initial release.
JODY-W2 - Application Note Contact For complete contact information, visit us at www.u-blox.com. u-blox Offices North, Central and South America u-blox America, Inc. Phone: E-mail: +1 703 483 3180 info_us@u-blox.com Regional Office West Coast: Phone: E-mail: Headquarters Europe, Middle East, Africa Asia, Australia, Pacific u-blox AG Phone: +65 6734 3811 E-mail: info_ap@u-blox.com Support: support_ap@u-blox.com Phone: +41 44 722 74 44 E-mail: info@u-blox.com Support: support@u-blox.
