For example, the following bond ETFs have monthly dividends except in January:
1) https://www.nasdaq.com/market-activity/funds-and-etfs/vteb/dividend-history:
------------ DATES --------------
EX DATE TYPE AMOUNT DECLARE RECORD PAYMENT
12/23/2019 Cash $0.099 12/20/2019 12/24/2019 12/27/2019
11/01/2019 Cash $0.101 10/30/2019 11/04/2019 11/06/2019
[snip]
03/01/2019 Cash $0.097 02/28/2019 03/04/2019 03/06/2019
02/01/2019 Cash $0.107 01/31/2019 02/04/2019 02/06/2019
12/24/2018 Cash $0.103 12/21/2018 12/26/2018 12/28/2018
11/01/2018 Cash $0.107 10/30/2018 11/02/2018 11/06/2018
[snip]
02/01/2018 Cash $0.089 01/30/2018 02/02/2018 02/06/2018
12/26/2017 Cash $0.089 12/21/2017 12/27/2017 12/29/2017
11/01/2017 Cash $0.08 10/30/2017 11/02/2017 11/06/2017
[snip]
03/01/2017 Cash $0.083 02/28/2017 03/03/2017 03/07/2017
02/01/2017 Cash $0.073 02/01/2017 02/03/2017 02/07/2017
12/22/2016 Cash $0.078 12/21/2016 12/27/2016 12/29/2016
12/01/2016 Cash $0.082 11/30/2016 12/05/2016 12/07/2016
11/01/2016 Cash $0.063 10/31/2016 11/03/2016 11/07/2016
2) https://www.nasdaq.com/market-activity/funds-and-etfs/cmf/dividend-history
------------ DATES --------------
EX DATE TYPE AMOUNT DECLARE RECORD PAYMENT
12/19/2019 Cash $0.096 12/17/2018 12/20/2019 12/26/2019
11/01/2019 Cash $0.101 12/17/2018 11/04/2019 11/07/2019
[snip]
02/01/2019 Cash $0.106 12/17/2018 02/04/2019 02/07/2019
12/18/2018 Cash $0.108 12/30/2017 12/19/2018 12/24/2018
11/01/2018 Cash $0.113 12/30/2017 11/02/2018 11/07/2018
[snip]
03/01/2018 Cash $0.11 03/02/2018 03/07/2018
02/01/2018 Cash $0.101 01/31/2018 02/02/2018 02/07/2018
12/21/2017 Cash $0.096 12/20/2017 12/22/2017 12/28/2017
11/01/2017 Cash $0.102 10/31/2017 11/02/2017 11/07/2017
[snip]
03/01/2017 Cash $0.22 03/01/2017 03/03/2017 03/07/2017
02/01/2017 Cash $0.204 02/01/2017 02/03/2017 02/07/2017
12/22/2016 Cash $0.192 12/22/2016 12/27/2016 12/29/2016
12/01/2016 Cash $0.206 12/01/2016 12/05/2016 12/07/2016
11/01/2016 Cash $0.199 11/01/2016 11/03/2016 11/07/2016